CVE-2021-29470

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.

Exiv2 is a Cross-platform C++ library and a command line utility to manage image metadata. It provides fast and easy read and write access to the Exif, IPTC and XMP metadata and the ICC Profile embedded within digital images in various formats.

Security Fix(es):

A flaw was found in Exiv2 in versions before and including 0.27.4-RC1. Improper input validation of the rawData.size property in Jp2Image::readMetadata() in jp2image.cpp can lead to a heap-based buffer overflow via a crafted JPG image containing malicious EXIF data.(CVE-2021-3482)

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.(CVE-2021-29457)

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.(CVE-2021-29458)

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.(CVE-2021-29470)

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4. Please see our security policy for information about Exiv2 security.(CVE-2021-29473)

Exiv2 is a command-line utility and C++ library for reading, writing,…

Exiv2 is a C++ library to access image metadata, supporting read and write access to the Exif, IPTC and XMP metadata, Exif MakerNote support, extract and delete methods for Exif thumbnails, classes to access Ifd, and support for various image formats.

The following packages have been upgraded to a later upstream version: exiv2 (0.27.4). (BZ#1989860)

Security Fix(es):

• exiv2: Heap-based buffer overflow in Jp2Image::readMetadata() (CVE-2021-3482)

• exiv2: Heap-based buffer overflow in Exiv2::Jp2Image::doWriteMetadata (CVE-2021-29457)

• exiv2: Out-of-bounds read in Exiv2::Internal::CrwMap::encode (CVE-2021-29458)

• exiv2: Heap-based buffer overflow in Exiv2::Jp2Image::encodeJp2Header (CVE-2021-29464)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header (CVE-2021-29470)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::doWriteMetadata (CVE-2021-29473)

• exiv2: Integer overflow in CrwMap:encode0x1810 leading to heap-based buffer overflow and DoS (CVE-2021-31292)

• exiv2: Out-of-bounds read in Exiv2::WebPImage::doWriteMetadata (CVE-2021-29463)

• exiv2: Use of uninitialized memory in isWebPType() may lead to information leak (CVE-2021-29623)

• exiv2: DoS due to quadratic complexity in ProcessUTF8Portion (CVE-2021-32617)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::printStructure (CVE-2021-37618)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header (CVE-2021-37619)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4.

Exiv2 is a C++ library to access image metadata, supporting read and write access to the Exif, IPTC and XMP metadata, Exif MakerNote support, extract and delete methods for Exif thumbnails, classes to access Ifd, and support for various image formats.

The following packages have been upgraded to a later upstream version: exiv2 (0.27.4). (BZ#1989860)

Security Fix(es):

• exiv2: Heap-based buffer overflow in Jp2Image::readMetadata() (CVE-2021-3482)

• exiv2: Heap-based buffer overflow in Exiv2::Jp2Image::doWriteMetadata (CVE-2021-29457)

• exiv2: Out-of-bounds read in Exiv2::Internal::CrwMap::encode (CVE-2021-29458)

• exiv2: Heap-based buffer overflow in Exiv2::Jp2Image::encodeJp2Header (CVE-2021-29464)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header (CVE-2021-29470)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::doWriteMetadata (CVE-2021-29473)

• exiv2: Integer overflow in CrwMap:encode0x1810 leading to heap-based buffer overflow and DoS (CVE-2021-31292)

• exiv2: Out-of-bounds read in Exiv2::WebPImage::doWriteMetadata (CVE-2021-29463)

• exiv2: Use of uninitialized memory in isWebPType() may lead to information leak (CVE-2021-29623)

• exiv2: DoS due to quadratic complexity in ProcessUTF8Portion (CVE-2021-32617)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::printStructure (CVE-2021-37618)

• exiv2: Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header (CVE-2021-37619)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

The updated packages fix security vulnerabilities:

Heap-based buffer overflow in Jp2Image::readMetadata(). (CVE-2021-3482)

Heap-based buffer overflow in Exiv2::Jp2Image::doWriteMetadata. (CVE-2021-29457)

Out-of-bounds read in Exiv2::Internal::CrwMap::encode. (CVE-2021-29458)

Exiv2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. (CVE-2021-29463)

Exiv2 incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. (CVE-2021-29464)

Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header. (CVE-2021-29470)

Out-of-bounds read in Exiv2::Jp2Image::doWriteMetadata. (CVE-2021-29473)

Read of uninitialized memory may lead to information leak. (CVE-2021-29623)

DoS due to quadratic complexity in ProcessUTF8Portion. (CVE-2021-32617)

These are all security issues fixed in the exiv2-0.27.5-3.1 package on the GA media of openSUSE Tumbleweed.

This update for exiv2 fixes the following issues:

• CVE-2021-37621: Fixed denial of service due to infinite loop in Image:printIFDStructure (bsc#1189333).
• CVE-2021-37620: Fixed out-of-bounds read in XmpTextValue:read() (bsc#1189332).
• CVE-2021-37619: Fixed out-of-bounds read in Exiv2:Jp2Image:encodeJp2Header (bsc#1189331).
• CVE-2021-37618: Fixed out-of-bounds read in Exiv2:Jp2Image:printStructure (bsc#1189330).
• CVE-2021-32617: Fixed denial of service inside inefficient algorithm (quadratic complexity) (bsc#1186192).
• CVE-2021-31292: Fixed integer overflow in CrwMap:encode0x1810 (bsc#1188756).
• CVE-2021-31291: Fixed heap-based buffer overflow vulnerability in jp2image.cpp may lead to a denial of service (bsc#1188733).
• CVE-2021-29470: Fixed out-of-bounds read in Exiv2:Jp2Image:encodeJp2Header (bsc#1185447).
• CVE-2020-18899: Fixed uncontrolled memory allocation (bsc#1189636).
• CVE-2020-18898: Fixed remote denial of service in printIFDStructure function (bsc#1189780).
• CVE-2018-8977: Fixed remote denial of service in Exiv2::Internal::printCsLensFFFF function in canonmn_int.cpp (bsc#1086798).
• CVE-2018-8976: Fixed remote denial of service in image.cpp Exiv2::Internal::stringFormat via out-of-bounds read (bsc#1086810).
• CVE-2018-5772: Fixed segmentation fault caused by uncontrolled recursion inthe Exiv2::Image::printIFDStructure (bsc#1076579).
• CVE-2018-18915: Fixed an infinite loop in the Exiv2:Image:printIFDStructure function (bsc#1114690).
• CVE-2018-10772: Fixed segmentation fault when the function Exiv2::tEXtToDataBuf() is finished (bsc#1092096).

This update for exiv2 fixes the following issues:

Updated to version 0.27.5 (jsc#PED-1393):

• CVE-2017-1000128: Fixed stack out of bounds read in JPEG2000 parser (bsc#1068871).
• CVE-2019-13108: Fixed integer overflow PngImage:readMetadata (bsc#1142675).
• CVE-2020-19716: Fixed buffer overflow vulnerability in the Databuf function in types.cpp (bsc#1188645).
• CVE-2021-29457: Fixed heap buffer overflow when write metadata into a crafted image file (bsc#1185002).
• CVE-2021-29470: Fixed out-of-bounds read in Exiv2:Jp2Image:encodeJp2Header (bsc#1185447).
• CVE-2021-29623: Fixed read of uninitialized memory (bsc#1186053).
• CVE-2021-31291: Fixed heap-based buffer overflow in jp2image.cpp (bsc#1188733).
• CVE-2021-32617: Fixed denial of service due to inefficient algorithm (bsc#1186192).
• CVE-2021-37620: Fixed out-of-bounds read in XmpTextValue:read() (bsc#1189332).
• CVE-2021-37621: Fixed DoS due to infinite loop in Image:printIFDStructure (bsc#1189333).
• CVE-2021-37622: Fixed DoS due to infinite loop in JpegBase:printStructure (bsc#1189334)
• CVE-2021-34334: Fixed DoS due to integer overflow in loop counter(bsc#1189338)
• CVE-2021-37623: Fixed DoS due to infinite loop in JpegBase:printStructure (bsc#1189335)
• CVE-2021-29463: Fixed out-of-bounds read in webpimage.cpp (bsc#1185913).
• CVE-2021-34334: Fixed DoS due to integer overflow in loop counter (bsc#1189338)
• CVE-2019-13111: Fixed integer overflow in WebPImage:decodeChunks that lead to denial of service (bsc#1142679)
• CVE-2021-29463: Fixed an out-of-bounds read was found in webpimage.cpp (bsc#1185913)

Bugfixes:

• Fixed build using GCC 11 (bsc#1185218).

A new libexiv2-2_27 shared library is shipped, the libexiv2-2_26 is provided only for compatibility now.

Please recompile your applications using the exiv2 library.

It was discovered that Exiv2 incorrectly handled certain images. An attacker could possibly use this issue to execute arbitrary code or cause a crash. (CVE-2021-29457)

It was discovered that Exiv2 incorrectly handled certain images. An attacker could possibly use this issue to cause a denial of service. (CVE-2021-29458, CVE-2021-29470)

It was discovered that Exiv2 incorrectly handled certain images. An attacker could possibly use this issue to execute arbitrary code or cause a crash. (CVE-2021-3482)