CVE-2018-20189

In GraphicsMagick 1.3.31, the ReadDIBImage function of coders/dib.c has a vulnerability allowing a crash and denial of service via a dib file that is crafted to appear with direct pixel values and also colormapping (which is not available beyond 8-bits/sample), and therefore lacks indexes initialization.

In GraphicsMagick 1.3.31, the ReadDIBImage function of coders/dib.c has a vulnerability allowing a crash and denial of service via a dib file that is crafted to appear with direct pixel values and also colormapping (which is not available beyond 8-bits/sample), and therefore lacks indexes initialization.

It was discovered that graphicsmagick was subject to vulnerabilities.

• heap-based buffer overflow in the WriteTGAImage function of tga.c (CVE-2018-20184).
• denial of service vulnerability in ReadDIBImage function of coders/dib.c (CVE-2018-20189).
• heap-based buffer over-read in the ReadBMPImage function of bmp.c (CVE-2018-20185).

This update for GraphicsMagick fixes the following issues:

Security vulnerabilities fixed:

• CVE-2018-20184: Fixed heap-based buffer overflow in the WriteTGAImage function of tga.c (bsc#1119822)
• CVE-2018-20189: Fixed denial of service vulnerability in ReadDIBImage function of coders/dib.c (bsc#1119790)

This update was imported from the openSUSE:Leap:15.0:Update update project.

This update for GraphicsMagick fixes the following issues:

Security vulnerabilities fixed:

• CVE-2018-20184: Fixed heap-based buffer overflow in the WriteTGAImage function of tga.c (bsc#1119822)
• CVE-2018-20189: Fixed denial of service vulnerability in ReadDIBImage function of coders/dib.c (bsc#1119790)

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.

It was discovered that GraphicsMagick was not properly performing bounds checks when processing TGA image files, which could lead to a heap buffer overflow. If a user or automated system were tricked into processing a specially crafted TGA image file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2018-20184)

It was discovered that GraphicsMagick was not properly validating bits per pixel data when processing DIB image files. If a user or automated system were tricked into processing a specially crafted DIB image file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2018-20189)

It was discovered that GraphicsMagick was not properly processing bit-field mask values in BMP image files, which could result in the execution of an infinite loop. If a user or automated system were tricked into processing a specially crafted BMP image file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2018-5685)

It was discovered that GraphicsMagick was not properly validating data used in arithmetic operations when processing MNG image files, which could result in a divide-by-zero error. If a user or automated system were tricked into processing a specially crafted MNG image file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2018-9018)

It was discovered that GraphicsMagick was not properly performing bounds checks when processing MIFF image files, which could lead to a heap buffer overflow. If a user or automated system were tricked into processing a specially crafted MIFF image file, an attacker could possibly use this issue to cause a denial of service or expose sensitive information. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2019-11006)

It was discovered that GraphicsMagick did not properly magnify certain MNG image files, which could lead to a heap buffer overflow. If a user or automated system were tricked into processing a specially crafted MNG image file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-12672)

It was discovered that GraphicsMagick was not properly performing bounds checks when parsing certain MIFF image files, which could lead to a heap buffer overflow. If a user or automated system were tricked into processing a specially crafted MIFF image file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-1270)