CVE-2025-57803

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-28 and 7.1.2-2 for ImageMagick's 32-bit build, a 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytes_per_line (stride) to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the (overflowed) stride, so the first row immediately writes past its slot and into adjacent heap memory with attacker-controlled bytes. This is a classic, powerful primitive for heap corruption in common auto-convert pipelines. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.

Summary

A 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytes_per_line (stride) to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the (overflowed) stride, so the first row immediately writes past its slot and into adjacent heap memory with attacker-controlled bytes. This is a classic, powerful primitive for heap corruption in common auto-convert pipelines.

• Impact: Attacker-controlled heap out-of-bounds (OOB) write during conversion to BMP.

• Surface: Typical upload → normalize/thumbnail → magick ... out.bmp workers.

• 32-bit: Vulnerable (reproduced with ASan).

• 64-bit: Safe from this specific integer overflow (IOF) by arithmetic, but still add product/size guards.

• Proposed severity: Critical 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Scope & Affected Builds

• Project: ImageMagick (BMP writer path, WriteBMPImage in coders/bmp.c).

• Commit under test: 3fcd081c0278427fc0e8ac40ef75c0a1537792f7

• Version string from the run: ImageMagick 7.1.2-0 Q8 i686 9bde76f1d:20250712

• Architecture: 32-bit i686 (sizeof(size_t) == 4) with ASan/UBSan.

• Note on other versions: Any release/branch with the same stride arithmetic and row loop is likely affected on 32-bit.

Root Cause (with code anchors)

Stride computation (writer)

bytes_per_line = 4 * ((image->columns * bmp_info.bits_per_pixel + 31) / 32);

Per-row base and 24-bpp loop (writer)

q = pixels + ((ssize_t)image->rows - y - 1) * (ssize_t)bytes_per_line;
for (x = 0; x < (ssize_t)image->columns; x++) {
  *q++ = B(...); *q++ = G(...); *q++ = R(...);  // writes 3 * width bytes
}

Allocation (writer)

pixel_info = AcquireVirtualMemory(image->rows,
    MagickMax(bytes_per_line, image->columns + 256UL) * sizeof(*pixels));
pixels = (unsigned char *) GetVirtualMemoryBlob(pixel_info);

Dimension “caps” (insufficient)

The writer rejects dimensions that don’t round-trip through signed int, but both overflow thresholds below are ≤ INT_MAX on 32-bit, so the caps do not prevent the bug.

Integer-Overflow Analysis (32-bit size_t)

Stride formula for 24-bpp:

bytes_per_line = 4 * ((width * 24 + 31) / 32)

There are two independent overflow hazards on 32-bit:

1. Stage-1 multiply+add in (width * 24 + 31)
   Overflow iff width > ⌊(0xFFFFFFFF − 31) / 24⌋ = 178,956,969
   → at width ≥ 178,956,970 the numerator wraps small before /32, producing a tiny bytes_per_line.

2. Stage-2 final ×4 after the division
   Let q = (width * 24 + 31) / 32. Final ×4 overflows iff q > 0x3FFFFFFF.
   Solving gives width ≥ 1,431,655,765 (0x55555555).

Both thresholds are below INT_MAX (≈2.147e9), so “int caps” don’t help.

Mismatch predicate (guaranteed OOB when overflowed):
Per-row write for 24-bpp is row_bytes = 3*width. Safety requires row_bytes ≤ bytes_per_line.
Under either overflow, bytes_per_line collapses → 3*width > bytes_per_line holds → OOB-write.

Concrete Demonstration

Chosen width: W = 178,957,200 (just over Stage-1 bound)

• Stage-1: 24*W + 31 = 4,294,972,831 ≡ 0x0000159F (mod 2^32) → 5535

• Divide by 32: 5535 / 32 = 172

• Multiply by 4: bytes_per_line = 172 * 4 = **688** bytes ← tiny stride

• Per-row data (24-bpp): row_bytes = 3*W = **536,871,600** bytes

• Allocation used: MagickMax(688, W+256) = **178,957,456** bytes

• Immediate OOB: first row writes ~536MB into a 178MB region, starting at a base advanced by only 688 bytes.

Observed Result (ASan excerpt)

ERROR: AddressSanitizer: heap-buffer-overflow on…

Summary

A 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytes_per_line (stride) to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the (overflowed) stride, so the first row immediately writes past its slot and into adjacent heap memory with attacker-controlled bytes. This is a classic, powerful primitive for heap corruption in common auto-convert pipelines.

• Impact: Attacker-controlled heap out-of-bounds (OOB) write during conversion to BMP.

• Surface: Typical upload → normalize/thumbnail → magick ... out.bmp workers.

• 32-bit: Vulnerable (reproduced with ASan).

• 64-bit: Safe from this specific integer overflow (IOF) by arithmetic, but still add product/size guards.

• Proposed severity: Critical 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Scope & Affected Builds

• Project: ImageMagick (BMP writer path, WriteBMPImage in coders/bmp.c).

• Commit under test: 3fcd081c0278427fc0e8ac40ef75c0a1537792f7

• Version string from the run: ImageMagick 7.1.2-0 Q8 i686 9bde76f1d:20250712

• Architecture: 32-bit i686 (sizeof(size_t) == 4) with ASan/UBSan.

• Note on other versions: Any release/branch with the same stride arithmetic and row loop is likely affected on 32-bit.

Root Cause (with code anchors)

Stride computation (writer)

bytes_per_line = 4 * ((image->columns * bmp_info.bits_per_pixel + 31) / 32);

Per-row base and 24-bpp loop (writer)

q = pixels + ((ssize_t)image->rows - y - 1) * (ssize_t)bytes_per_line;
for (x = 0; x < (ssize_t)image->columns; x++) {
  *q++ = B(...); *q++ = G(...); *q++ = R(...);  // writes 3 * width bytes
}

Allocation (writer)

pixel_info = AcquireVirtualMemory(image->rows,
    MagickMax(bytes_per_line, image->columns + 256UL) * sizeof(*pixels));
pixels = (unsigned char *) GetVirtualMemoryBlob(pixel_info);

Dimension “caps” (insufficient)

The writer rejects dimensions that don’t round-trip through signed int, but both overflow thresholds below are ≤ INT_MAX on 32-bit, so the caps do not prevent the bug.

Integer-Overflow Analysis (32-bit size_t)

Stride formula for 24-bpp:

bytes_per_line = 4 * ((width * 24 + 31) / 32)

There are two independent overflow hazards on 32-bit:

1. Stage-1 multiply+add in (width * 24 + 31) Overflow iff width > ⌊(0xFFFFFFFF − 31) / 24⌋ = 178,956,969 → at width ≥ 178,956,970 the numerator wraps small before /32, producing a tiny bytes_per_line.

2. Stage-2 final ×4 after the division Let q = (width * 24 + 31) / 32. Final ×4 overflows iff q > 0x3FFFFFFF. Solving gives width ≥ 1,431,655,765 (0x55555555).

Both thresholds are below INT_MAX (≈2.147e9), so “int caps” don’t help.

Mismatch predicate (guaranteed OOB when overflowed): Per-row write for 24-bpp is row_bytes = 3*width. Safety requires row_bytes ≤ bytes_per_line. Under either overflow, bytes_per_line collapses → 3*width > bytes_per_line holds → OOB-write.

Concrete Demonstration

Chosen width: W = 178,957,200 (just over Stage-1 bound)

• Stage-1: 24*W + 31 = 4,294,972,831 ≡ 0x0000159F (mod 2^32) → 5535

• Divide by 32: 5535 / 32 = 172

• Multiply by 4: bytes_per_line = 172 * 4 = **688** bytes ← tiny stride

• Per-row data (24-bpp): row_bytes = 3*W = **536,871,600** bytes

• Allocation used: MagickMax(688, W+256) = **178,957,456** bytes

• Immediate OOB: first row writes ~536MB into a 178MB region, starting at a base advanced by only 688 bytes.

Observed Result (ASan excerpt)

ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6eaac490
WRITE of size 1 in WriteBMPImage…

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Security Fix(es):

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, ImageMagick is vulnerable to heap-buffer overflow read around the handling of images with separate alpha channels when performing image magnification in ReadOneMNGIMage. This can likely be used to leak subsequent memory contents into the output image. This issue has been patched in version 7.1.2-1.(CVE-2025-55004)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024. This leads to corrupting memory beyond the end of the allocated logmap buffer. This issue has been patched in version 7.1.2-1.(CVE-2025-55005)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55154)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, there is undefined behavior (function-type-mismatch) in splay tree cloning callback. This results in a deterministic abort under UBSan (DoS in sanitizer builds), with no crash in a non-sanitized build. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55160)

A vulnerability classified as problematic was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software).The manipulation of the argument width/height with an unknown input leads to a unknown weakness. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero.As an impact it is known to affect availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5f0bcf986b8b5e90567750d31a37af502b73f2af is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55212)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software). It has been classified as critical.CWE is classifying the issue as CWE-123. Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 439b362b93c074eea6c3f834d84982b43ef057d5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55298)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 on 32-bit (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Impacted is confidentiality, integrity, and…

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Security Fix(es):

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, ImageMagick is vulnerable to heap-buffer overflow read around the handling of images with separate alpha channels when performing image magnification in ReadOneMNGIMage. This can likely be used to leak subsequent memory contents into the output image. This issue has been patched in version 7.1.2-1.(CVE-2025-55004)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024. This leads to corrupting memory beyond the end of the allocated logmap buffer. This issue has been patched in version 7.1.2-1.(CVE-2025-55005)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55154)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, there is undefined behavior (function-type-mismatch) in splay tree cloning callback. This results in a deterministic abort under UBSan (DoS in sanitizer builds), with no crash in a non-sanitized build. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55160)

A vulnerability classified as problematic was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software).The manipulation of the argument width/height with an unknown input leads to a unknown weakness. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero.As an impact it is known to affect availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5f0bcf986b8b5e90567750d31a37af502b73f2af is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55212)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software). It has been classified as critical.CWE is classifying the issue as CWE-123. Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 439b362b93c074eea6c3f834d84982b43ef057d5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55298)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 on 32-bit (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Impacted is confidentiality, integrity, and…

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Security Fix(es):

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, ImageMagick is vulnerable to heap-buffer overflow read around the handling of images with separate alpha channels when performing image magnification in ReadOneMNGIMage. This can likely be used to leak subsequent memory contents into the output image. This issue has been patched in version 7.1.2-1.(CVE-2025-55004)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024. This leads to corrupting memory beyond the end of the allocated logmap buffer. This issue has been patched in version 7.1.2-1.(CVE-2025-55005)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55154)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, there is undefined behavior (function-type-mismatch) in splay tree cloning callback. This results in a deterministic abort under UBSan (DoS in sanitizer builds), with no crash in a non-sanitized build. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55160)

A vulnerability classified as problematic was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software).The manipulation of the argument width/height with an unknown input leads to a unknown weakness. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero.As an impact it is known to affect availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5f0bcf986b8b5e90567750d31a37af502b73f2af is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55212)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software). It has been classified as critical.CWE is classifying the issue as CWE-123. Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 439b362b93c074eea6c3f834d84982b43ef057d5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55298)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 on 32-bit (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Impacted is confidentiality, integrity, and…

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Security Fix(es):

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, ImageMagick is vulnerable to heap-buffer overflow read around the handling of images with separate alpha channels when performing image magnification in ReadOneMNGIMage. This can likely be used to leak subsequent memory contents into the output image. This issue has been patched in version 7.1.2-1.(CVE-2025-55004)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024. This leads to corrupting memory beyond the end of the allocated logmap buffer. This issue has been patched in version 7.1.2-1.(CVE-2025-55005)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55154)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, there is undefined behavior (function-type-mismatch) in splay tree cloning callback. This results in a deterministic abort under UBSan (DoS in sanitizer builds), with no crash in a non-sanitized build. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55160)

A vulnerability classified as problematic was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software).The manipulation of the argument width/height with an unknown input leads to a unknown weakness. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero.As an impact it is known to affect availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5f0bcf986b8b5e90567750d31a37af502b73f2af is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55212)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software). It has been classified as critical.CWE is classifying the issue as CWE-123. Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 439b362b93c074eea6c3f834d84982b43ef057d5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55298)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 on 32-bit (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Impacted is confidentiality, integrity, and…

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Security Fix(es):

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55154)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, there is undefined behavior (function-type-mismatch) in splay tree cloning callback. This results in a deterministic abort under UBSan (DoS in sanitizer builds), with no crash in a non-sanitized build. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55160)

A vulnerability classified as problematic was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software).The manipulation of the argument width/height with an unknown input leads to a unknown weakness. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero.As an impact it is known to affect availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5f0bcf986b8b5e90567750d31a37af502b73f2af is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55212)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software). It has been classified as critical.CWE is classifying the issue as CWE-123. Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 439b362b93c074eea6c3f834d84982b43ef057d5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55298)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 on 32-bit (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Impacted is confidentiality, integrity, and availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 2c55221f4d38193adcb51056c14cf238fbcc35d7 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-57803)

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Security Fix(es):

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, ImageMagick is vulnerable to heap-buffer overflow read around the handling of images with separate alpha channels when performing image magnification in ReadOneMNGIMage. This can likely be used to leak subsequent memory contents into the output image. This issue has been patched in version 7.1.2-1.(CVE-2025-55004)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024. This leads to corrupting memory beyond the end of the allocated logmap buffer. This issue has been patched in version 7.1.2-1.(CVE-2025-55005)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55154)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, there is undefined behavior (function-type-mismatch) in splay tree cloning callback. This results in a deterministic abort under UBSan (DoS in sanitizer builds), with no crash in a non-sanitized build. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.(CVE-2025-55160)

A vulnerability classified as problematic was found in ImageMagick up to 6.9.13-27/7.1.2-1 (Image Processing Software).The manipulation of the argument width/height with an unknown input leads to a unknown weakness. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero.As an impact it is known to affect availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5f0bcf986b8b5e90567750d31a37af502b73f2af is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-55212)

A vulnerability was found in ImageMagick up to 6.9.13-27/7.1.2-1 on 32-bit (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Impacted is confidentiality, integrity, and availability.Upgrading to version 6.9.13-28 or 7.1.2-2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 2c55221f4d38193adcb51056c14cf238fbcc35d7 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-57803)

ImageMagick is free and open-source software used for editing and manipulating digital images. ImageMagick versions lower than 14.8.2 include insecure functions: SeekBlob(), which permits advancing the stream offset beyond the current end without increasing capacity, and WriteBlob(), which then expands by quantum + length (amortized) instead of offset + length, and copies to data +…

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-28 and 7.1.2-2 for ImageMagick's 32-bit build, a 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytes_per_line (stride) to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the (overflowed) stride, so the first row immediately writes past its slot and into adjacent heap memory with attacker-controlled bytes. This is a classic, powerful primitive for heap corruption in common auto-convert pipelines. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.

• CVE-2025-55154: fix integer overflows in MNG magnification
• CVE-2025-55212: fix division by zero in ThumbnailImage
• CVE-2025-57803: fix 32-bit integer overflow when writing BMP scanline stride
• CVE-2025-55298: fix format string bug leading to RCE or heap overflow

• SECURITY UPDATE: integer Overflow in BMP Encoder
  • debian/patches/CVE-2025-57803.patch: Fix buffer overflow issue in BMP decoder caused by insufficient memory allocation
  • CVE-2025-57803

• SECURITY UPDATE: 32-bit Integer Overflow in BMP Encoder
  • debian/patches/CVE-2025-57803.patch: Fix buffer overflow issue in BMP decoder caused by insufficient memory allocation
  • CVE-2025-57803

• SECURITY UPDATE: 32-bit integer overflow in BMP encoder allows attacker- controlled heap corruption
  • debian/patches/CVE-2025-57803.patch: Fix buffer overflow issue in BMP decoder caused by insufficient memory allocation
  • CVE-2025-57803

• CVE-2025-57803: fix integer overflow in BMP reader stride computation

• CVE-2025-57803: fix integer overflow in BMP reader stride computation

• CVE-2025-57803: fix integer overflow in BMP reader stride computation

• SECURITY UPDATE: fix vulnerability in stream handling
  • debian/patches/CVE-2025-53019.patch: fix vulnerability in stream handling
  • CVE-2025-53019
• SECURITY UPDATE: fix integer overflow in resize
  • debian/patches/CVE-2025-55212.patch: fix integer overflow in resize
  • CVE-2025-55212
• SECURITY UPDATE: fix heap-based buffer overflow in image processing
  • debian/patches/CVE-2025-55298.patch: fix heap-based buffer overflow in image processing
  • CVE-2025-55298
• SECURITY UPDATE: fix buffer overflow in BMP coder
  • debian/patches/CVE-2025-57803.patch: fix buffer overflow in BMP coder
  • CVE-2025-57803
• SECURITY UPDATE: fix vulnerability in PNG coder
  • debian/patches/CVE-2025-55154.patch: fix vulnerability in PNG coder
  • CVE-2025-55154
• SECURITY UPDATE: fix buffer overflow in BMP coder on 32-bit systems
  • debian/patches/CVE-2025-62171.patch: fix buffer overflow in BMP coder on 32-bit systems
  • CVE-2025-62171
• SECURITY UPDATE: fix stack overflow via infinite recursion in MSL and SVG coders
  • debian/patches/CVE-2025-68618.patch: fix stack overflow via infinite recursion in MSL and SVG coders
  • CVE-2025-68618
• SECURITY UPDATE: fix denial of service in SVG coder
  • debian/patches/CVE-2025-69204.patch: fix denial of service in SVG coder
  • CVE-2025-69204

These are all security issues fixed in the ImageMagick-7.1.2.2-2.1 package on the GA media of openSUSE Tumbleweed.

This update for ImageMagick fixes the following issues:

• CVE-2025-62594: unsigned underflow and division-by-zero can lead to OOB pointer arithmetic and process crash (bsc#1252749).
• CVE-2025-57807: BlobStream Forward-Seek Under-Allocation (bsc#1249362).
• CVE-2025-62171: incomplete fix for integer overflow in BMP Decoder (bsc#1252282).
• CVE-2025-55298: format string bug vulnerability can lead to heap overflow (bsc#1248780).
• CVE-2025-57803: 32-bit integer overflow can lead to heap out-of-bounds (OOB) write (bsc#1248784).
• CVE-2025-55212: division-by-zero in ThumbnailImage() when passing a geometry string containing only a colon to montage -geometry (bsc#1248767).

Root has patched CVE-2025-57803 in the rootio-imagemagick package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2025-57803 in the rootio-imagemagick package for Root:Debian:13. Multiple fixed versions available.

This update for ImageMagick fixes the following issues:

• CVE-2025-55004: Fixed heap buffer over-read in in ReadOneMNGIMage when processing images with separate alpha channels (bsc#1248076).
• CVE-2025-55005: Fixed heap buffer overflow when transforming from Log to sRGB colorspaces (bsc#1248077).
• CVE-2025-55154: Fixed integer overflow when performing magnified size calculations in ReadOneMNGIMage can lead to out-of-bounds write (bsc#1248078).
• CVE-2025-55160: Fixed undefined behavior due to function-type-mismatch in CloneSplayTree (bsc#1248079).
• CVE-2025-55212: Fixed division-by-zero in ThumbnailImage() when passing a geometry string containing only a colon to montage -geometry (bsc#1248767).
• CVE-2025-55298: Fixed heap overflow due to format string bug vulnerability (bsc#1248780).
• CVE-2025-57803: Fixed heap out-of-bounds (OOB) write due to 32-bit integer overflow (bsc#1248784).

This update for ImageMagick fixes the following issues:

• CVE-2025-55005: Fixed heap buffer overflow when transforming from Log to sRGB colorspaces (bsc#1248077).
• CVE-2025-55154: Fixed integer overflow when performing magnified size calculations in ReadOneMNGIMage (bsc#1248078).
• CVE-2025-55160: Fixed undefined behavior due to function-type-mismatch in CloneSplayTree (bsc#1248079).
• CVE-2025-55212: Fixed division-by-zero in ThumbnailImage() when passing a geometry string containing only a colon to montage -geometry (bsc#1248767).
• CVE-2025-55298: Fixed heap overflow due to format string bug vulnerability (bsc#1248780).
• CVE-2025-57803: Fixed heap out-of-bounds (OOB) write due to 32-bit integer overflow (bsc#1248784).

This update for ImageMagick fixes the following issues:

• CVE-2025-55004: Fixed heap buffer over-read in in ReadOneMNGIMage when processing images with separate alpha channels (bsc#1248076).
• CVE-2025-55005: Fixed heap buffer overflow when transforming from Log to sRGB colorspaces (bsc#1248077).
• CVE-2025-55154: Fixed integer overflow when performing magnified size calculations in ReadOneMNGIMage (bsc#1248078).
• CVE-2025-55160: Fixed undefined behavior due to function-type-mismatch in CloneSplayTree (bsc#1248079).
• CVE-2025-55212: Fixed division-by-zero in ThumbnailImage() when passing a geometry string containing only a colon to montage -geometry (bsc#1248767).
• CVE-2025-55298: Fixed heap overflow due to format string bug vulnerability (bsc#1248780).
• CVE-2025-57803: Fixed heap out-of-bounds (OOB) write due to 32-bit integer overflow (bsc#1248784).

This update for ImageMagick fixes the following issues:

• CVE-2025-55004: Fixed heap buffer over-read in in ReadOneMNGIMage when processing images with separate alpha channels (bsc#1248076).
• CVE-2025-55005: Fixed heap buffer overflow when transforming from Log to sRGB colorspaces (bsc#1248077).
• CVE-2025-55154: Fixed integer overflow when performing magnified size calculations in ReadOneMNGIMage (bsc#1248078).
• CVE-2025-55160: Fixed undefined behavior due to function-type-mismatch in CloneSplayTree (bsc#1248079).
• CVE-2025-55212: Fixed division-by-zero in ThumbnailImage() when passing a geometry string containing only a colon to montage -geometry (bsc#1248767).
• CVE-2025-55298: Fixed heap overflow due to format string bug vulnerability (bsc#1248780).
• CVE-2025-57803: Fixed heap out-of-bounds (OOB) write due to 32-bit integer overflow (bsc#1248784).

Other fixes:

• Fixed output file placeholders (bsc#1247475).

This update for ImageMagick fixes the following issues:

• CVE-2025-55004: Fixed heap buffer over-read in in ReadOneMNGIMage when processing images with separate alpha channels (bsc#1248076).
• CVE-2025-55005: Fixed heap buffer overflow when transforming from Log to sRGB colorspaces (bsc#1248077).
• CVE-2025-55154: Fixed integer overflow when performing magnified size calculations in ReadOneMNGIMage (bsc#1248078).
• CVE-2025-55160: Fixed undefined behavior due to function-type-mismatch in CloneSplayTree (bsc#1248079).
• CVE-2025-55212: Fixed division-by-zero in ThumbnailImage() when passing a geometry string containing only a colon to montage -geometry (bsc#1248767).
• CVE-2025-55298: Fixed heap overflow due to format string bug vulnerability (bsc#1248780).
• CVE-2025-57803: Fixed heap out-of-bounds (OOB) write due to 32-bit integer overflow (bsc#1248784).

Other fixes:

• Fixed output file placeholders (bsc#1247475).

This update for ImageMagick fixes the following issues:

• CVE-2025-62594: unsigned underflow and division-by-zero can lead to OOB pointer arithmetic and process crash (bsc#1252749).
• CVE-2025-57807: BlobStream Forward-Seek Under-Allocation (bsc#1249362).
• CVE-2025-62171: incomplete fix for integer overflow in BMP Decoder (bsc#1252282).
• CVE-2025-55298: format string bug vulnerability can lead to heap overflow (bsc#1248780).
• CVE-2025-57803: 32-bit integer overflow can lead to heap out-of-bounds (OOB) write (bsc#1248784).
• CVE-2025-55212: division-by-zero in ThumbnailImage() when passing a geometry string containing only a colon to montage -geometry (bsc#1248767).

Woojin Park, Hojun Lee, Yougin Won and Siyeon Han discovered that ImageMagick did not properly sanitize image file names. An attacker could possibly use this issue to cause a denial of service, obtain sensitive information, or execute arbitrary code. (CVE-2025-55298)

Lumina Mescuwa discovered that ImageMagick did not properly handle memory when encoding BMP images. An attacker could possibly use this issue to cause ImageMagick to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2025-57803)