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CVE-2021-3781

Status Candidate

Overview

A trivial sandbox (enabled with the `-dSAFER` option) escape flaw was found in the ghostscript interpreter by injecting a specially crafted pipe command. This flaw allows a specially crafted document to execute arbitrary commands on the system in the context of the ghostscript interpreter. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Related Files

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
Debian Security Advisory 4972-1
Posted Sep 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4972-1 - It was discovered that Ghostscript, the GPL PostScript/PDF interpreter, does not properly validate access for the "%pipe%", "%handle%" and "%printer%" io devices, which could result in the execution of arbitrary code if a malformed Postscript file is processed (despite the -dSAFER sandbox being enabled).

tags | advisory, arbitrary
systems | linux, debian
advisories | CVE-2021-3781
SHA-256 | efae9a961b56c9384742b0eb52f6aecb392a18a59c1e854ecd4ad068889fe62b
Ubuntu Security Notice USN-5075-1
Posted Sep 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5075-1 - It was discovered that Ghostscript incorrectly handled certain PostScript files. If a user or automated system were tricked into processing a specially crafted file, a remote attacker could possibly use this issue to access arbitrary files, execute arbitrary code, or cause a denial of service.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-3781
SHA-256 | 8066faf8f9bcaf984d208bae2bf6ab4841ae3f87ca73ab9faf9365b80665cadb
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