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CVE-2018-16509

Status Candidate

Overview

An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction.

Related Files

Red Hat Security Advisory 2018-3760-01
Posted Dec 4, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3760-01 - The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2018-16509
SHA-256 | c0b5e2769486069d204e50f7e3f88899e3ecec392143407a2813ee619249a793
Gentoo Linux Security Advisory 201811-12
Posted Nov 24, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201811-12 - Multiple vulnerabilities have been found in GPL Ghostscript, the worst of which could result in the execution of arbitrary code. Versions prior to 9.26 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2017-11714, CVE-2017-7948, CVE-2017-9610, CVE-2017-9611, CVE-2017-9612, CVE-2017-9618, CVE-2017-9619, CVE-2017-9620, CVE-2017-9726, CVE-2017-9727, CVE-2017-9739, CVE-2017-9740, CVE-2017-9835, CVE-2018-10194, CVE-2018-15908, CVE-2018-15909, CVE-2018-15910, CVE-2018-15911, CVE-2018-16509, CVE-2018-16510, CVE-2018-16511, CVE-2018-16513, CVE-2018-16539, CVE-2018-16540, CVE-2018-16541, CVE-2018-16542, CVE-2018-16543
SHA-256 | f5b4a728b14187c5a83c7a7e52cff21a77fc1eec1f231e5c5605761a0aeee79f
Red Hat Security Advisory 2018-2918-01
Posted Oct 16, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2918-01 - The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2018-10194, CVE-2018-15910, CVE-2018-16509, CVE-2018-16542
SHA-256 | 1365f857a8861ae654e77cc6eefab17b628f59e2c5ee0d9dae6960f0308f4405
Debian Security Advisory 4294-1
Posted Sep 17, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4294-1 - Tavis Ormandy discovered multiple vulnerabilites in Ghostscript, an interpreter for the PostScript language, 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-2018-16509, CVE-2018-16802
SHA-256 | 45e8cc03f17d1c003d8c0c70b9c56bf113fa26a077c1c2d1be4862854c7547b1
Slackware Security Advisory - ghostscript Updates
Posted Sep 14, 2018
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New ghostscript packages are available for Slackware 14.2 and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2018-16509
SHA-256 | 22735e4a44be3fb95fef08aa7246a639c27bd8dac485d656e4e728b7ff7980ef
Ghostscript Failed Restore Command Execution
Posted Sep 6, 2018
Authored by Tavis Ormandy, wvu | Site metasploit.com

This Metasploit module exploits a -dSAFER bypass in Ghostscript to execute arbitrary commands by handling a failed restore (grestore) in PostScript to disable LockSafetyParams and avoid invalidaccess. This vulnerability is reachable via libraries such as ImageMagick, and this module provides the latest vector for Ghostscript.

tags | exploit, arbitrary
advisories | CVE-2018-16509
SHA-256 | 9a18d75e03ae94b3478787aa8898389327fe3597f03bcf6872c9a239283731ae
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