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CVE-2016-7979

Status Candidate

Overview

Ghostscript before 9.21 might allow remote attackers to bypass the SAFER mode protection mechanism and consequently execute arbitrary code by leveraging type confusion in .initialize_dsc_parser.

Related Files

Gentoo Linux Security Advisory 201702-31
Posted Feb 23, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201702-31 - Multiple vulnerabilities have been found in GPL Ghostscript, the worst of which may allow execution of arbitrary code. Versions prior to 9.20-r1 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2016-7976, CVE-2016-7977, CVE-2016-7978, CVE-2016-7979, CVE-2016-8602
SHA-256 | b3d656fb5ed70e42c11d5359cb050e758a1e9620ffbbe27b7796e55ec545d211
Red Hat Security Advisory 2017-0014-01
Posted Jan 4, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0014-01 - 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. Security Fix: It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target.

tags | advisory, info disclosure
systems | linux, redhat
advisories | CVE-2013-5653, CVE-2016-7977, CVE-2016-7979, CVE-2016-8602
SHA-256 | aa2fdec27486c01f7209535c9535208b6744bca79637e6dd48f51898e9bc84bd
Red Hat Security Advisory 2017-0013-01
Posted Jan 4, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0013-01 - 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. Security Fix: It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target.

tags | advisory, info disclosure
systems | linux, redhat
advisories | CVE-2013-5653, CVE-2016-7977, CVE-2016-7978, CVE-2016-7979, CVE-2016-8602
SHA-256 | 9c327c514fa6a634470cfb80a3fde3bfbb23360a42fb8ebe4816afd86c9d6859
Ubuntu Security Notice USN-3148-1
Posted Dec 2, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3148-1 - Tavis Ormandy discovered multiple vulnerabilities in the way that Ghostscript processes certain Postscript files. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service or possibly execute arbitrary code. Multiple vulnerabilities were discovered in Ghostscript related to information disclosure. If a user or automated system were tricked into opening a specially crafted file, an attacker could expose sensitive data. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, vulnerability, info disclosure
systems | linux, ubuntu
advisories | CVE-2016-7977, CVE-2016-7979, CVE-2016-8602
SHA-256 | 305ddd517930ecd6045f507192a90f2665deb323a20c8dbdc27d875d6773af78
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