CVE-2020-12672

GraphicsMagick through 1.3.35 has a heap-based buffer overflow in ReadMNGImage in coders/png.c.

GraphicsMagick through 1.3.35 has a heap-based buffer overflow in ReadMNGImage in coders/png.c.

GraphicsMagick through 1.3.35 has a heap-based buffer overflow in ReadMNGImage in coders/png.c (CVE-2020-12672).

This update for GraphicsMagick fixes the following issues:

• CVE-2020-12672: heap-based buffer overflow in ReadMNGImage in coders/png.c. (boo#1171271)

This update for GraphicsMagick fixes the following issues:

• CVE-2020-12672: heap-based buffer overflow in ReadMNGImage in coders/png.c. (boo#1171271)

This update was imported from the openSUSE:Leap:15.1:Update update project.

These are all security issues fixed in the GraphicsMagick-1.3.36-1.7 package on the GA media of openSUSE Tumbleweed.

It was discovered that GraphicsMagick allowed reading arbitrary files via specially crafted images. An attacker could use this issue to expose sensitive information. This issue only affects Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 ESM. (CVE-2019-12921)

It was discovered that GraphicsMagick did not correctly handle memory allocations for error messages. An attacker could use this issue to corrupt memory or possibly execute arbitrary code. This issue only affects Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 ESM. (CVE-2019-19950)

It was discovered that GraphicsMagick did not correctly handle type limits. An attacker could use these issues to cause heap-based buffer overflows, leading to a denial of service (application crash) or possibly execute arbitrary code. These issues only affect Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 ESM. (CVE-2019-19951, CVE-2019-19953)

It was discovered that GraphicsMagick did not correctly handle the signed integer limit in 32-bit applications. An attacker could use this issue to cause a heap-based buffer overflow, leading to a denial of service (application crash) or possibly execute arbitrary code. This issue only affects Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, and Ubuntu 18.04 ESM. (CVE-2020-10938)

It was discovered that GraphicsMagick did not properly magnify certain images. An attacker could use this issue to cause a heap-based buffer overflow, leading to a denial of service (application crash) or possibly execute arbitrary code. (CVE-2020-12672)

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)