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Gentoo: GLSA-201702-31 Normal: Ghostscript Code Execution Risks

gentoo
Calendar Grey February 22, 2017
Scroller Gentoo
Uncover various security weaknesses within GPL Ghostscript that might enable unauthorized code execution or lead to denial of service on Gentoo systems.
Multiple vulnerabilities have been found in GPL Ghostscript, the worst of which may allow execution of arbitrary code.

Summary

Multiple vulnerabilities have been discovered in GPL Ghostscript and the bundled OpenJPEG. Please review the CVE identifiers and GLSA-201612-26 (OpenJPEG) referenced below for additional information. Note: GPL Ghostscript in Gentoo since app-text/ghostscript-gpl-9.20-r1 no longer bundles OpenJPEG.

Topics%20covered

Topics Covered

security advisory Gentoo code execution Denial of Service multiple vulnerabilities Ghostscript

Resolution

All GPL Ghostscript users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot -v ">=app-text/ghostscript-gpl-9.20-r1"

References

[ 1 ] CVE-2016-7976 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7976 [ 2 ] CVE-2016-7977 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7977 [ 3 ] CVE-2016-7978 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7978 [ 4 ] CVE-2016-7979 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7979 [ 5 ] CVE-2016-8602 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-8602 [ 6 ] GLSA-201612-26 https://security.gentoo.org/glsa/201612-26

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201702-31
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: GPL Ghostscript: Multiple vulnerabilities
Date: February 22, 2017
Bugs: #596576, #607190
ID: 201702-31

Topics%20covered

Topics Covered

security advisory Gentoo code execution Denial of Service multiple vulnerabilities Ghostscript

Synopsis

Multiple vulnerabilities have been found in GPL Ghostscript, the worst of which may allow execution of arbitrary code.

Background

Ghostscript is an interpreter for the PostScript language and for PDF.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-text/ghostscript-gpl < 9.20-r1 >= 9.20-r1

Impact

===== A context-dependent attacker could entice a user to open a specially crafted PostScript file or PDF using GPL Ghostscript possibly resulting in the execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.