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Fedora 17 : expat-2.1.0-1.fc17 (2012-4936)

medium Nessus Plugin ID 58709

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Synopsis

The remote Fedora host is missing a security update.

Description

This update includes expat 2.1.0, which fixes includes a fix for a security issue.

A specially crafted set of keys could trigger hash function collisions, which degrade dictionary performance by changing hash table operations complexity from an expected/average O(1) to the worst case O(n). Reporters were able to find colliding strings efficiently using meet in the middle attack. (CVE-2012-0876)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected expat package.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=806602

http://www.nessus.org/u?b4c229eb

Plugin Details

Severity: Medium

ID: 58709

File Name: fedora_2012-4936.nasl

Version: 1.13

Type: local

Agent: unix

Published: 4/12/2012

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:expat, cpe:/o:fedoraproject:fedora:17

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/30/2012

Reference Information

BID: 52379

FEDORA: 2012-4936