Detections
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Scientific Linux Security Update : libxml2 on SL4.x i386/x86_64 (20120111)
high Nessus Plugin ID 61216
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Synopsis
The remote Scientific Linux host is missing one or more security updates.Description
The libxml2 library is a development toolbox providing the implementation of various XML standards. One of those standards is the XML Path Language (XPath), which is a language for addressing parts of an XML document.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 off-by-one error, leading to a heap-based buffer overflow, was found in the way libxml2 parsed certain XML files. 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-2011-0216)
A flaw was found in the way libxml2 parsed certain XPath expressions.
If an attacker were able to supply a specially crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash. (CVE-2011-2834)
Note: Scientific Linux does not ship any applications that use libxml2 in a way that would allow the CVE-2011-2834 flaw to be exploited;
however, third-party applications may allow XPath expressions to be passed which could trigger this flaw.
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
Plugin Details
Severity: High
ID: 61216
File Name: sl_20120111_libxml2_on_SL4_x.nasl
Version: 1.6
Type: local
Agent: unix
Published: 8/1/2012
Updated: 1/14/2021
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 9.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:fermilab:scientific_linux:libxml2, p-cpe:/a:fermilab:scientific_linux:libxml2-debuginfo, p-cpe:/a:fermilab:scientific_linux:libxml2-devel, p-cpe:/a:fermilab:scientific_linux:libxml2-python, x-cpe:/o:fermilab:scientific_linux
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: 7/21/2011
Reference Information
CVE: CVE-2011-0216, CVE-2011-2834, CVE-2011-3905, CVE-2011-3919