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RHEL 6 : libxml2 (RHSA-2012:0018)

high Nessus Plugin ID 57493

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated libxml2 packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The libxml2 library is a development toolbox providing the implementation of various XML standards.

A heap-based buffer overflow flaw was found in the way libxml2 decoded entity references with long names. A remote attacker could provide a specially crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-3919)

An out-of-bounds memory read flaw was found in libxml2. A remote attacker could provide a specially crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash. (CVE-2011-3905)

All users of libxml2 are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The desktop must be restarted (log out, then log back in) for this update to take effect.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2012:0018

https://access.redhat.com/security/cve/cve-2011-3919

https://access.redhat.com/security/cve/cve-2011-3905

Plugin Details

Severity: High

ID: 57493

File Name: redhat-RHSA-2012-0018.nasl

Version: 1.20

Type: local

Agent: unix

Published: 1/12/2012

Updated: 1/14/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:libxml2, p-cpe:/a:redhat:enterprise_linux:libxml2-debuginfo, p-cpe:/a:redhat:enterprise_linux:libxml2-devel, p-cpe:/a:redhat:enterprise_linux:libxml2-python, p-cpe:/a:redhat:enterprise_linux:libxml2-static, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.2

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

Patch Publication Date: 1/11/2012

Vulnerability Publication Date: 12/13/2011

Reference Information

CVE: CVE-2011-3905, CVE-2011-3919

RHSA: 2012:0018