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CVE-2022-2085

Status Candidate

Overview

A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number of bits in memory. When allocating a buffer device, it relies on an init_device_procs defined for the device that uses it as a prototype that depends upon the number of bits per pixel. For bpp > 64, mem_x_device is used and does not have an init_device_procs defined. This flaw allows an attacker to parse a large number of bits (more than 64 bits per pixel), which triggers a NULL pointer dereference flaw, causing an application to crash.

Related Files

Gentoo Linux Security Advisory 202309-03
Posted Sep 18, 2023
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202309-3 - Multiple vulnerabilities have been discovered in GPL Ghostscript, the worst of which could result in remote code execution. Versions greater than or equal to 10.01.2 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2022-2085, CVE-2023-28879, CVE-2023-36664
SHA-256 | 1942df8f52d75992217f8bd8dcc306d788649233f8c8deb1d563cbc9ec03f4bf
Gentoo Linux Security Advisory 202211-11
Posted Nov 22, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202211-11 - Multiple vulnerabilities have been found in GPL Ghostscript, the worst of which could result in arbitrary code execution. Versions less than 9.56.1 are affected.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2021-3781, CVE-2022-2085
SHA-256 | 673f8003ddcf46ee086f90168684c4f88259dcb070f2ee64831f29b383c7f16d
Ubuntu Security Notice USN-5643-1
Posted Sep 27, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5643-1 - It was discovered that GhostScript incorrectly handled certain PDF files. If a user or automated system were tricked into opening a specially crafted PDF file, a remote attacker could use this issue to cause GhostScript to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. It was discovered that GhostScript incorrectly handled certain PDF files. If a user or automated system were tricked into opening a specially crafted PDF file, a remote attacker could use this issue to cause GhostScript to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-27792, CVE-2022-2085
SHA-256 | 9ddb6beb5a0c7f182f8769c40dd4c0e7d3469c4fb93b3442d282bbf5574f3e0f
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