Articles / Red Hat: Updated libxslt pa…

Red Hat: Updated libxslt packages fix a security issue

libxslt is a library for transforming XML files into other XML files using the standard XSLT stylesheet transformation mechanism. A heap buffer overflow flaw was discovered in the RC4 libxslt library extension. An attacker could create a malicious XSL file that would cause a crash, or, possibly, execute arbitrary code with the privileges of the application using the libxslt library to perform XSL transformations on untrusted XSL style sheets. Fixed packages are available from updates.redhat.com.
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=====================================================================
                  Red Hat Security Advisory

Synopsis:          Moderate: libxslt security update
Advisory ID:       RHSA-2008:0649-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0649.html
Issue date:        2008-07-31
CVE Names:         CVE-2008-2935 
=====================================================================

1. Summary:

Updated libxslt packages that fix a security issue are now available for
Red Hat Enterprise Linux 4 and Red Hat Enterprise Linux 5.

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


2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

3. Description:

libxslt is a library for transforming XML files into other XML files using
the standard XSLT stylesheet transformation mechanism.

A heap buffer overflow flaw was discovered in the RC4 libxslt library
extension. An attacker could create a malicious XSL file that would cause a
crash, or, possibly, execute arbitrary code with the privileges of the
application using the libxslt library to perform XSL transformations on
untrusted XSL style sheets. (CVE-2008-2935)

Red Hat would like to thank Chris Evans for reporting this vulnerability.

All libxslt users are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue.

4. 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
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

455848 - CVE-2008-2935 libxslt: buffer overflow in libexslt RC4 encryption/decryption functions

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/libxslt-1.1.11-1.el4_7.2.src.rpm

i386:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-devel-1.1.11-1.el4_7.2.i386.rpm
libxslt-python-1.1.11-1.el4_7.2.i386.rpm

ia64:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-1.1.11-1.el4_7.2.ia64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.ia64.rpm
libxslt-devel-1.1.11-1.el4_7.2.ia64.rpm
libxslt-python-1.1.11-1.el4_7.2.ia64.rpm

ppc:
libxslt-1.1.11-1.el4_7.2.ppc.rpm
libxslt-1.1.11-1.el4_7.2.ppc64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.ppc.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.ppc64.rpm
libxslt-devel-1.1.11-1.el4_7.2.ppc.rpm
libxslt-python-1.1.11-1.el4_7.2.ppc.rpm

s390:
libxslt-1.1.11-1.el4_7.2.s390.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.s390.rpm
libxslt-devel-1.1.11-1.el4_7.2.s390.rpm
libxslt-python-1.1.11-1.el4_7.2.s390.rpm

s390x:
libxslt-1.1.11-1.el4_7.2.s390.rpm
libxslt-1.1.11-1.el4_7.2.s390x.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.s390.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.s390x.rpm
libxslt-devel-1.1.11-1.el4_7.2.s390x.rpm
libxslt-python-1.1.11-1.el4_7.2.s390x.rpm

x86_64:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-devel-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-python-1.1.11-1.el4_7.2.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/libxslt-1.1.11-1.el4_7.2.src.rpm

i386:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-devel-1.1.11-1.el4_7.2.i386.rpm
libxslt-python-1.1.11-1.el4_7.2.i386.rpm

x86_64:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-devel-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-python-1.1.11-1.el4_7.2.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/libxslt-1.1.11-1.el4_7.2.src.rpm

i386:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-devel-1.1.11-1.el4_7.2.i386.rpm
libxslt-python-1.1.11-1.el4_7.2.i386.rpm

ia64:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-1.1.11-1.el4_7.2.ia64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.ia64.rpm
libxslt-devel-1.1.11-1.el4_7.2.ia64.rpm
libxslt-python-1.1.11-1.el4_7.2.ia64.rpm

x86_64:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-devel-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-python-1.1.11-1.el4_7.2.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/libxslt-1.1.11-1.el4_7.2.src.rpm

i386:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-devel-1.1.11-1.el4_7.2.i386.rpm
libxslt-python-1.1.11-1.el4_7.2.i386.rpm

ia64:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-1.1.11-1.el4_7.2.ia64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.ia64.rpm
libxslt-devel-1.1.11-1.el4_7.2.ia64.rpm
libxslt-python-1.1.11-1.el4_7.2.ia64.rpm

x86_64:
libxslt-1.1.11-1.el4_7.2.i386.rpm
libxslt-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.i386.rpm
libxslt-debuginfo-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-devel-1.1.11-1.el4_7.2.x86_64.rpm
libxslt-python-1.1.11-1.el4_7.2.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxslt-1.1.17-2.el5_2.2.src.rpm

i386:
libxslt-1.1.17-2.el5_2.2.i386.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.i386.rpm
libxslt-python-1.1.17-2.el5_2.2.i386.rpm

x86_64:
libxslt-1.1.17-2.el5_2.2.i386.rpm
libxslt-1.1.17-2.el5_2.2.x86_64.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.i386.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.x86_64.rpm
libxslt-python-1.1.17-2.el5_2.2.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxslt-1.1.17-2.el5_2.2.src.rpm

i386:
libxslt-debuginfo-1.1.17-2.el5_2.2.i386.rpm
libxslt-devel-1.1.17-2.el5_2.2.i386.rpm

x86_64:
libxslt-debuginfo-1.1.17-2.el5_2.2.i386.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.x86_64.rpm
libxslt-devel-1.1.17-2.el5_2.2.i386.rpm
libxslt-devel-1.1.17-2.el5_2.2.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/libxslt-1.1.17-2.el5_2.2.src.rpm

i386:
libxslt-1.1.17-2.el5_2.2.i386.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.i386.rpm
libxslt-devel-1.1.17-2.el5_2.2.i386.rpm
libxslt-python-1.1.17-2.el5_2.2.i386.rpm

ia64:
libxslt-1.1.17-2.el5_2.2.i386.rpm
libxslt-1.1.17-2.el5_2.2.ia64.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.i386.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.ia64.rpm
libxslt-devel-1.1.17-2.el5_2.2.ia64.rpm
libxslt-python-1.1.17-2.el5_2.2.ia64.rpm

ppc:
libxslt-1.1.17-2.el5_2.2.ppc.rpm
libxslt-1.1.17-2.el5_2.2.ppc64.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.ppc.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.ppc64.rpm
libxslt-devel-1.1.17-2.el5_2.2.ppc.rpm
libxslt-devel-1.1.17-2.el5_2.2.ppc64.rpm
libxslt-python-1.1.17-2.el5_2.2.ppc.rpm

s390x:
libxslt-1.1.17-2.el5_2.2.s390.rpm
libxslt-1.1.17-2.el5_2.2.s390x.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.s390.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.s390x.rpm
libxslt-devel-1.1.17-2.el5_2.2.s390.rpm
libxslt-devel-1.1.17-2.el5_2.2.s390x.rpm
libxslt-python-1.1.17-2.el5_2.2.s390x.rpm

x86_64:
libxslt-1.1.17-2.el5_2.2.i386.rpm
libxslt-1.1.17-2.el5_2.2.x86_64.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.i386.rpm
libxslt-debuginfo-1.1.17-2.el5_2.2.x86_64.rpm
libxslt-devel-1.1.17-2.el5_2.2.i386.rpm
libxslt-devel-1.1.17-2.el5_2.2.x86_64.rpm
libxslt-python-1.1.17-2.el5_2.2.x86_64.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2935
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2008 Red Hat, Inc.
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