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Gentoo: 201612-12 Normal: Patch Denial of Service Threat

gentoo
Calendar Grey December 5, 2016
Dist Gentoo Esm H88
The Gentoo GLSA 202301-18 alerts users about a localized Denial of Service vulnerability impacting the configuration management tool.
Patch is vulnerable to a locally generated Denial of Service condition.

Summary

Due to a flaw in Patch, the application can enter an infinite loop when processing a specially crafted diff file.

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal severity patch issue

Resolution

All patch users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-devel/patch-2.7.4"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201612-12
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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: Patch: Denial of Service
Date: December 05, 2016
Bugs: #538658
ID: 201612-12

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal severity patch issue

Synopsis

Patch is vulnerable to a locally generated Denial of Service condition.

Background

Patch takes a patch file containing a difference listing produced by the diff program and applies those differences to one or more original files, producing patched versions.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-devel/patch < 2.7.4 >= 2.7.4

Impact

===== A local attacker could pass a specially crafted diff file to Patch, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

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