In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

This update fixes several vulnerabilities in Graphicsmagick: Various memory handling problems and cases of missing or incomplete input sanitising may result in denial of service, memory disclosure or the execution of arbitrary code if malformed media files are processed.

The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4207-1 advisory.

    It was discovered that GraphicsMagick incorrectly handled certain image files. An attacker could possibly     use this issue to cause a denial of service or other unspecified impact.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Multiple vulnerabilities have been found in GraphicsMagick, the image processing system.

CVE-2018-20184

The WriteTGAImage function (tga.c) is affected by a heap-based buffer overflow. Remote attackers might leverage this vulnerability to cause a denial of service via a crafted image file.

CVE-2018-20185

The ReadBMPImage function (bmp.c) is affected by a heap-based buffer over-read. Remote attackers might leverage this vulnerability to cause a denial of service via a crafted image file.

CVE-2018-20189

The ReadDIBImage function (coders/dib.c) is affected by an assertion error. Remote attackers might leverage this vulnerability to cause a denial of service via a crafted image file.

For Debian 8 'Jessie', these problems have been fixed in version 1.3.20-3+deb8u5.

We recommend that you upgrade your graphicsmagick packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
134577	Debian DSA-4640-1 : graphicsmagick - security update	Nessus	Debian Local Security Checks	critical
131696	Ubuntu 18.04 LTS : GraphicsMagick vulnerabilities (USN-4207-1)	Nessus	Ubuntu Local Security Checks	critical
119889	Debian DLA-1619-1 : graphicsmagick security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2018-20185

medium

Tenable Plugins

critical

critical

medium