CVE-2018-11251

In ImageMagick 7.0.7-23 Q16 x86_64 2018-01-24, there is a heap-based buffer over-read in ReadSUNImage in coders/sun.c, which allows attackers to cause a denial of service (application crash in SetGrayscaleImage in MagickCore/quantize.c) via a crafted SUN image file.

This update for ImageMagick fixes the following issues:

These security issues were fixed:

• CVE-2017-13758: Prevent heap-based buffer overflow in the TracePoint() function (bsc#1056277).
• CVE-2017-10928: Prevent heap-based buffer over-read in the GetNextToken function that allowed remote attackers to obtain sensitive information from process memory or possibly have unspecified other impact via a crafted SVG document (bsc#1047356).
• CVE-2018-9133: Long compute times in the tiff decoder have been fixed (bsc#1087820).
• CVE-2018-11251: Heap-based buffer over-read in ReadSUNImage in coders/sun.c, which allows attackers to cause denial of service (bsc#1094237).
• CVE-2017-18271: Infinite loop in the function ReadMIFFImage in coders/miff.c, which allows attackers to cause a denial of service (bsc#1094204).
• CVE-2018-11655: Memory leak in the GetImagePixelCache in MagickCore/cache.c was fixed (bsc#1095730)
• CVE-2018-10804: Memory leak in WriteTIFFImage in coders/tiff.c was fixed (bsc#1095813)
• CVE-2018-10805: Fixed memory leaks in bgr.c, rgb.c, cmyk.c, gray.c, ycbcr.c (bsc#1095812)

This update for ImageMagick fixes the following issues:

Security issues fixed:

• CVE-2018-11251: Heap-based buffer over-read in ReadSUNImage in coders/sun.c, which allows attackers to cause denial of service (bsc#1094237)
• CVE-2017-18271: Infinite loop in the function ReadMIFFImage in coders/miff.c, which allows attackers to cause a denial of service (bsc#1094204)
• CVE-2017-13758: Heap-based buffer overflow in the TracePoint() in MagickCore/draw.c, which allows attackers to cause a denial of service(bsc#1056277)
• CVE-2018-10805: Fixed several memory leaks in rgb.c, cmyk.c, gray.c, and ycbcr.c (bsc#1095812)
• CVE-2018-12600: The ReadDIBImage and WriteDIBImage functions allowed attackers to cause an out of bounds write via a crafted file (bsc#1098545)
• CVE-2018-12599: The ReadBMPImage and WriteBMPImage fucntions allowed attackers to cause an out of bounds write via a crafted file (bsc#1098546)
• CVE-2018-14434: Fixed a memory leak for a colormap in WriteMPCImage in coders/mpc.c (bsc#1102003)
• CVE-2018-14435: Fixed a memory leak in DecodeImage in coders/pcd.c (bsc#1102007)
• CVE-2018-14436: Fixed a memory leak in ReadMIFFImage in coders/miff.c (bsc#1102005)
• CVE-2018-14437: Fixed a memory leak in parse8BIM in coders/meta.c (bsc#1102004)

It was discovered that ImageMagick incorrectly handled certain malformed image files. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program.