CVE-2017-1000445

ImageMagick 7.0.7-1 and older version are vulnerable to null pointer dereference in the MagickCore component and might lead to denial of service

This update for ImageMagick fixes several issues.

These security issues were fixed:

• CVE-2017-1000476: A CPU exhaustion vulnerability was found in the function ReadDDSInfo in coders/dds.c, which allowed attackers to cause a denial of service (bsc#1074610).
• CVE-2017-9409: The ReadMPCImage function in mpc.c allowed attackers to cause a denial of service (memory leak) via a crafted file (bsc#1042948).
• CVE-2017-1000445: A NULL pointer dereference in the MagickCore component might have lead to denial of service (bsc#1074425).
• CVE-2017-17680: Prevent a memory leak in the function ReadXPMImage in coders/xpm.c, which allowed attackers to cause a denial of service via a crafted XPM image file (a different vulnerability than CVE-2017-17882) (bsc#1072902).
• CVE-2017-17882: Prevent a memory leak in the function ReadXPMImage in coders/xpm.c, which allowed attackers to cause a denial of service via a crafted XPM image file (a different vulnerability than CVE-2017-17680) (bsc#1074122).
• CVE-2017-11449: coders/mpc did not enable seekable streams and thus could not validate blob sizes, which allowed remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an image received from stdin (bsc#1049373).
• CVE-2017-12430: A memory exhaustion in the function ReadMPCImage in coders/mpc.c allowed attackers to cause DoS (bsc#1052252).
• CVE-2017-12642: Prevent a memory leak vulnerability in ReadMPCImage in coders\mpc.c via crafted file allowing for DoS (bsc#1052771).
• CVE-2017-14249: A mishandled EOF check in ReadMPCImage in coders/mpc.c that lead to a division by zero in GetPixelCacheTileSize in MagickCore/cache.c allowed remote attackers to cause a denial of service via a crafted file (bsc#1058082).
• Prevent memory leak via crafted file in pwp.c allowing for DoS (bsc#1051412)

This update for ImageMagick fixes several issues.

These security issues were fixed:

• CVE-2017-12672: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c, which allowed attackers to cause a denial of service (bsc#1052720).
• CVE-2017-13060: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c, which allowed attackers to cause a denial of service via a crafted file (bsc#1055065).
• CVE-2017-11724: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c involving the quantum_info and clone_info data structures (bsc#1051446).
• CVE-2017-12670: Added validation in coders/mat.c to prevent an assertion failure in the function DestroyImage in MagickCore/image.c, which allowed attackers to cause a denial of service (bsc#1052731).
• CVE-2017-12667: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c (bsc#1052732).
• CVE-2017-13146: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c (bsc#1055323).
• CVE-2017-10800: Processing MATLAB images in coders/mat.c could have lead to a denial of service (OOM) in ReadMATImage() if the size specified for a MAT Object was larger than the actual amount of data (bsc#1047044)
• CVE-2017-13648: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c (bsc#1055434).
• CVE-2017-11141: Fixed a memory leak vulnerability in the function ReadMATImage in coders\mat.c that could have caused memory exhaustion via a crafted MAT file, related to incorrect ordering of a SetImageExtent call (bsc#1047898).
• CVE-2017-11529: The ReadMATImage function in coders/mat.c allowed remote attackers to cause a denial of service (memory leak) via a crafted file (bsc#1050120).
• CVE-2017-12564: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c, which allowed attackers to cause a denial of service (bsc#1052468).
• CVE-2017-12434: Added a missing NULL check in the function ReadMATImage in coders/mat.c, which allowed attackers to cause a denial of service (assertion failure) in DestroyImageInfo in image.c (bsc#1052550).
• CVE-2017-12675: Added a missing check for multidimensional data coders/mat.c, that could have lead to a memory leak in the function ReadImage in MagickCore/constitute.c, which allowed attackers to cause a denial of service (bsc#1052710).
• CVE-2017-14326: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c, which allowed attackers to cause a denial of service via a crafted file (bsc#1058640).
• CVE-2017-11644: Processesing a crafted file in convert could have lead to a memory leak in the ReadMATImage() function in coders/mat.c (bsc#1050606).
• CVE-2017-13658: Added a missing NULL check in the ReadMATImage function in coders/mat.c, which could have lead to a denial of service (assertion failure and application exit) in the DestroyImageInfo function in MagickCore/image.c (bsc#1055855).
• CVE-2017-14533: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c (bsc#1059751).
• CVE-2017-17881: Fixed a memory leak vulnerability in the function ReadMATImage in coders/mat.c, which allowed attackers to cause a denial of service via a crafted MAT image file (bsc#1074123).
• CVE-2017-1000476: Prevent CPU exhaustion in the function ReadDDSInfo in coders/dds.c, which allowed attackers to cause a denial of service (bsc#1074610).
• CVE-2017-9409: Fixed a memory leak vulnerability in the function ReadMPCImage in mpc.c, which allowed attackers to cause a denial of service via a crafted file (bsc#1042948).
• CVE-2017-11449: coders/mpc did not enable seekable streams and thus could not validate blob sizes, which allowed remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an image received from stdin (bsc#1049373)
• CVE-2017-12430: A memory exhaustion in the…

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.