Scientific Linux Security Update : expat on SL5.x, SL6.x i386/x86_64 (20120613)

medium Nessus Plugin ID 61327
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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Expat is a C library written by James Clark for parsing XML documents.

A denial of service flaw was found in the implementation of hash arrays in Expat. An attacker could use this flaw to make an application using Expat consume an excessive amount of CPU time by providing a specially crafted XML file that triggers multiple hash function collisions. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-0876)

A memory leak flaw was found in Expat. If an XML file processed by an application linked against Expat triggered a memory re-allocation failure, Expat failed to free the previously allocated memory. This could cause the application to exit unexpectedly or crash when all available memory is exhausted. (CVE-2012-1148)

All Expat users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, applications using the Expat library must be restarted for the update to take effect.

Solution

Update the affected expat, expat-debuginfo and / or expat-devel packages.

See Also

http://www.nessus.org/u?5ad05e00

Plugin Details

Severity: Medium

ID: 61327

File Name: sl_20120613_expat_on_SL5_x.nasl

Version: 1.6

Type: local

Agent: unix

Published: 8/1/2012

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:expat, p-cpe:/a:fermilab:scientific_linux:expat-debuginfo, p-cpe:/a:fermilab:scientific_linux:expat-devel, x-cpe:/o:fermilab:scientific_linux

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

Patch Publication Date: 6/13/2012

Vulnerability Publication Date: 7/3/2012

Reference Information

CVE: CVE-2012-0876, CVE-2012-1148