CVE-2018-17965

ImageMagick 7.0.7-28 has a memory leak vulnerability in WriteSGIImage in coders/sgi.c.

ImageMagick 7.0.7-28 has a memory leak vulnerability in WriteSGIImage in coders/sgi.c.

Graphicsmagick has been updated to fix several bugs and security issues.

This update for ImageMagick fixes the following issues:

Security issues fixed:

• CVE-2018-18024: Fixed an infinite loop in the ReadBMPImage function of the coders/bmp.c file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file. (bsc#1111069)
• CVE-2018-18016: Fixed a memory leak in WritePCXImage (bsc#1111072).
• CVE-2018-17965: Fixed a memory leak in WriteSGIImage (bsc#1110747).
• CVE-2018-17966: Fixed a memory leak in WritePDBImage (bsc#1110746).
• CVE-2018-12600: ReadDIBImage and WriteDIBImage allowed attackers to cause an out of bounds write via a crafted file. (bsc#1098545)
• CVE-2018-12599: ReadBMPImage and WriteBMPImage allowed attackers to cause an out of bounds write via a crafted file. (bsc#1098546)

This update for GraphicsMagick fixes the following security issue:

• CVE-2018-16750: Prevent memory leak in the formatIPTCfromBuffer function (bsc#1108283)
• CVE-2018-16323: ReadXBMImage left data uninitialized when processing an XBM file that has a negative pixel value. If the affected code was used as a library loaded into a process that includes sensitive information, that information sometimes can be leaked via the image data (bsc#1106855)
• CVE-2018-16640: Prevent memory leak in the function ReadOneJNGImage (bsc#1107619).
• CVE-2018-16642: The function InsertRow allowed remote attackers to cause a denial of service via a crafted image file due to an out-of-bounds write (bsc#1107616).
• CVE-2018-16643: The functions ReadDCMImage, ReadPWPImage, ReadCALSImage, and ReadPICTImage did check the return value of the fputc function, which allowed remote attackers to cause a denial of service via a crafted image file (bsc#1107612).
• CVE-2018-16644: Added missing check for length in the functions ReadDCMImage and ReadPICTImage, which allowed remote attackers to cause a denial of service via a crafted image (bsc#1107609).
• CVE-2018-16645: Prevent excessive memory allocation issue in the functions ReadBMPImage and ReadDIBImage, which allowed remote attackers to cause a denial of service via a crafted image file (bsc#1107604).
• CVE-2018-18024: Fixed an infinite loop in the ReadBMPImage function of the coders/bmp.c file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file. (bsc#1111069)
• CVE-2018-18016: Fixed a memory leak in WritePCXImage (bsc#1111072).
• CVE-2018-17965: Fixed a memory leak in WriteSGIImage (bsc#1110747).
• CVE-2018-17966: Fixed a memory leak in WritePDBImage (bsc#1110746).
• CVE-2018-16749: A missing NULL check in ReadOneJNGImage allowed remote attackers to cause a denial of service (WriteBlob assertion failure and application exit) via a crafted file. (bsc#1108282)

This update for ImageMagick fixes the following security issue:

• CVE-2017-17934: Prevent memory leaks, related to MSLPopImage and ProcessMSLScript, and associated with mishandling of MSLPushImage calls (bsc#1074170).
• CVE-2018-16750: Prevent memory leak in the formatIPTCfromBuffer function (bsc#1108283)
• CVE-2018-16749: Added missing NULL check in ReadOneJNGImage that allowed an attacker to cause a denial of service (WriteBlob assertion failure and application exit) via a crafted file (bsc#1108282)
• CVE-2018-16413: Prevent heap-based buffer over-read in the PushShortPixel function leading to DoS (bsc#1106989).
• CVE-2018-16323: ReadXBMImage left data uninitialized when processing an XBM file that has a negative pixel value. If the affected code was used as a library loaded into a process that includes sensitive information, that information sometimes can be leaked via the image data (bsc#1106855)
• CVE-2018-16642: The function InsertRow allowed remote attackers to cause a denial of service via a crafted image file due to an out-of-bounds write (bsc#1107616)
• CVE-2018-16643: The functions ReadDCMImage, ReadPWPImage, ReadCALSImage, and ReadPICTImage did check the return value of the fputc function, which allowed remote attackers to cause a denial of service via a crafted image file (bsc#1107612)
• CVE-2018-16644: Added missing check for length in the functions ReadDCMImage and ReadPICTImage, which allowed remote attackers to cause a denial of service via a crafted image (bsc#1107609)
• CVE-2018-16645: Prevent excessive memory allocation issue in the functions ReadBMPImage and ReadDIBImage, which allowed remote attackers to cause a denial of service via a crafted image file (bsc#1107604)
• CVE-2018-18024: Fixed an infinite loop in the ReadBMPImage function of the coders/bmp.c file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file (bsc#1111069)
• CVE-2018-18016: Fixed a memory leak in WritePCXImage (bsc#1111072)
• CVE-2018-17965: Fixed a memory leak in WriteSGIImage (bsc#1110747)
• CVE-2018-17966: Fixed a memory leak in WritePDBImage (bsc#1110746)

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.

Due to a large number of issues discovered in GhostScript that prevent it from being used by ImageMagick safely, the update for Ubuntu 18.10 and Ubuntu 19.04 includes a default policy change that disables support for the Postscript and PDF formats in ImageMagick. This policy can be overridden if necessary by using an alternate ImageMagick policy configuration.