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Red Hat Enterprise Linux 2.1 - RHSA-2008:0886-01 Critical libxml2 DoS Alert

red hat
Calendar Grey September 11, 2008
Dist Redhat Esm H88
Oracle's notice highlights critical OpenSSL vulnerabilities related to man-in-the-middle attacks and data exposure. Take action immediately!
A denial of service flaw was found in the way libxml2 processed certain content

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

The libxml2 packages provide a library that allows you to manipulate XML files. It includes support to read, modify, and write XML and HTML files.
A heap-based buffer overflow flaw was found in the way libxml2 handled long XML entity names. If an application linked against libxml2 processed untrusted malformed XML content, it could cause the application to crash or, possibly, execute arbitrary code. (CVE-2008-3529)
A denial of service flaw was found in the way libxml2 processed certain content. If an application linked against libxml2 processed malformed XML content, it could cause the application to use an excessive amount of CPU time and memory, and stop responding. (CVE-2003-1564)
All users of libxml2 are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Topics%20covered

Topics Covered

security advisory denial of service security update Red Hat buffer overflow critical libxml2

References

https://www.cve.org/CVERecord?id=CVE-2003-1564 https://www.cve.org/CVERecord?id=CVE-2008-3529 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 :
Source:
i386: libxml2-2.4.19-11.ent.i386.rpm libxml2-devel-2.4.19-11.ent.i386.rpm libxml2-python-2.4.19-11.ent.i386.rpm
ia64: libxml2-2.4.19-11.ent.ia64.rpm libxml2-devel-2.4.19-11.ent.ia64.rpm libxml2-python-2.4.19-11.ent.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
Source:
ia64: libxml2-2.4.19-11.ent.ia64.rpm libxml2-devel-2.4.19-11.ent.ia64.rpm libxml2-python-2.4.19-11.ent.ia64.rpm
Red Hat Enterprise Linux ES version 2.1:
Source:
i386: libxml2-2.4.19-11.ent.i386.rpm libxml2-devel-2.4.19-11.ent.i386.rpm libxml2-python-2.4.19-11.ent.i386.rpm
Red Hat Enterprise Linux WS version 2.1:
Source:
i386: libxml2-2.4.19-11.ent.i386.rpm libxml2-devel-2.4.19-11.ent.i386.rpm libxml2-python-2.4.19-11.ent.i386.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key#package


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2008:0886-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2008:0886.html
Issue date: 2008-09-11

Topic

Updated libxml2 packages that fix various security issues are now available for Red Hat Enterprise Linux 2.1.

This update has been rated as having important security impact by the Red Hat Security Response Team.

Topics%20covered

Topics Covered

security advisory denial of service security update Red Hat buffer overflow critical libxml2

Relevant Releases Architectures

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64

Red Hat Linux Advanced Workstation 2.1 - ia64

Red Hat Enterprise Linux ES version 2.1 - i386

Red Hat Enterprise Linux WS version 2.1 - i386

Bugs Fixed

461015 - CVE-2008-3529 libxml2: long entity name heap buffer overflow

461107 - CVE-2003-1564 libxml2: billion laughs DoS attack

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