CVE-2017-12805

In ImageMagick 7.0.6-6, a memory exhaustion vulnerability was found in the function ReadTIFFImage, which allows attackers to cause a denial of service.

This update for ImageMagick fixes the following issues:

Security issues fixed:

• CVE-2019-11597: Fixed a heap-based buffer over-read in the WriteTIFFImage() (bsc#1138464).
• Fixed a file content disclosure via SVG and WMF decoding (bsc#1138425).- CVE-2019-11472: Fixed a denial of service in ReadXWDImage() (bsc#1133204).
• CVE-2019-11470: Fixed a denial of service in ReadCINImage() (bsc#1133205).
• CVE-2019-11506: Fixed a heap-based buffer overflow in the WriteMATLABImage() (bsc#1133498).
• CVE-2019-11505: Fixed a heap-based buffer overflow in the WritePDBImage() (bsc#1133501).
• CVE-2019-10131: Fixed a off-by-one read in formatIPTCfromBuffer function in coders/meta.c (bsc#1134075).
• CVE-2017-12806: Fixed a denial of service through memory exhaustion in format8BIM() (bsc#1135232).
• CVE-2017-12805: Fixed a denial of service through memory exhaustion in ReadTIFFImage() (bsc#1135236).
• CVE-2019-11598: Fixed a heap-based buffer over-read in WritePNMImage() (bsc#1136732)

We also now disable PCL in the -SUSE configuration, as it also uses ghostscript for decoding (bsc#1136183)

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.

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.