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Gentoo: GLSA-201809-05 Normal: libjpeg Denial of Service Risk

gentoo
Calendar Grey August 21, 2017
Dist Gentoo Esm H88
Memory corruption vulnerability in bzip2 enables remote adversaries to trigger Denial of Service. It is recommended to update to resolve this threat.
An use-after-free vulnerability has been found in bzip2 that could allow remote attackers to cause a Denial of Service condition.

Summary

A use-after-free flaw was found in bzip2recover, leading to a null pointer dereference, or a write to a closed file descriptor. Please review the CVE identifier referenced below for details.

Topics%20covered

Topics Covered

security advisory denial of service gentoo remote attack normal severity bzip2

Resolution

All bzip2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/bzip2-1.0.6-r8"

References

[ 1 ] CVE-2016-3189 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-3189

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201708-08
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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: bzip2: Denial of Service
Date: August 21, 2017
Bugs: #620466
ID: 201708-08

Topics%20covered

Topics Covered

security advisory denial of service gentoo remote attack normal severity bzip2

Synopsis

An use-after-free vulnerability has been found in bzip2 that could allow remote attackers to cause a Denial of Service condition.

Background

bzip2 is a high-quality data compressor used extensively by Gentoo Linux.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/bzip2 < 1.0.6-r8: >= 1.0.6-r8:

Impact

===== A remote attacker could entice a user to process a specially crafted bzip2 archive using bzip2recover, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.