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(Red Hat Issues Fix) Libxml2 Heap Overflow in xmlParseAttValueComplex() Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1020856 |
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SecurityTracker URL: http://securitytracker.com/id/1020856
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CVE Reference:
CVE-2008-3529
(Links to External Site)
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Date: Sep 11 2008
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): prior to 2.7.0
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Description:
A vulnerability was reported in Libxml2. A remote user can cause arbitrary code to be executed on the target system.
A remote user can create a specially crafted XML entity name that, when processed by the target application using libxml2, will trigger a heap overflow and execute arbitrary code on the target system. The code will run with the privileges of the target application.
The vulnerability resides in the xmlParseAttValueComplex() function in 'parser.c'.
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Impact:
A remote user can execute arbitrary code on the target system.
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Solution:
Red Hat has released a fix.
The Red Hat advisory is available at:
https://rhn.redhat.com/errata/RHSA-2008-0884.html
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Vendor URL: xmlsoft.org/ (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Red Hat Enterprise)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Thu, 11 Sep 2008 09:56:46 -0400
Subject: [RHSA-2008:0884-01] Important: libxml2 security update
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: libxml2 security update
Advisory ID: RHSA-2008:0884-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0884.html
Issue date: 2008-09-11
CVE Names: CVE-2008-3529
=====================================================================
1. Summary:
Updated libxml2 packages that fix a security issue are now available for
Red Hat Enterprise Linux 3, 4, and 5.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
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:
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)
All users of libxml2 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/):
461015 - CVE-2008-3529 libxml2: long entity name heap buffer overflow
6. Package List:
Red Hat Enterprise Linux AS version 3:
Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/libxml2-2.5.10-13.src.rpm
i386:
libxml2-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-devel-2.5.10-13.i386.rpm
libxml2-python-2.5.10-13.i386.rpm
ia64:
libxml2-2.5.10-13.i386.rpm
libxml2-2.5.10-13.ia64.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.ia64.rpm
libxml2-devel-2.5.10-13.ia64.rpm
libxml2-python-2.5.10-13.ia64.rpm
ppc:
libxml2-2.5.10-13.ppc.rpm
libxml2-2.5.10-13.ppc64.rpm
libxml2-debuginfo-2.5.10-13.ppc.rpm
libxml2-debuginfo-2.5.10-13.ppc64.rpm
libxml2-devel-2.5.10-13.ppc.rpm
libxml2-python-2.5.10-13.ppc.rpm
s390:
libxml2-2.5.10-13.s390.rpm
libxml2-debuginfo-2.5.10-13.s390.rpm
libxml2-devel-2.5.10-13.s390.rpm
libxml2-python-2.5.10-13.s390.rpm
s390x:
libxml2-2.5.10-13.s390.rpm
libxml2-2.5.10-13.s390x.rpm
libxml2-debuginfo-2.5.10-13.s390.rpm
libxml2-debuginfo-2.5.10-13.s390x.rpm
libxml2-devel-2.5.10-13.s390x.rpm
libxml2-python-2.5.10-13.s390x.rpm
x86_64:
libxml2-2.5.10-13.i386.rpm
libxml2-2.5.10-13.x86_64.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.x86_64.rpm
libxml2-devel-2.5.10-13.x86_64.rpm
libxml2-python-2.5.10-13.x86_64.rpm
Red Hat Desktop version 3:
Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/libxml2-2.5.10-13.src.rpm
i386:
libxml2-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-devel-2.5.10-13.i386.rpm
libxml2-python-2.5.10-13.i386.rpm
x86_64:
libxml2-2.5.10-13.i386.rpm
libxml2-2.5.10-13.x86_64.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.x86_64.rpm
libxml2-devel-2.5.10-13.x86_64.rpm
libxml2-python-2.5.10-13.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/libxml2-2.5.10-13.src.rpm
i386:
libxml2-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-devel-2.5.10-13.i386.rpm
libxml2-python-2.5.10-13.i386.rpm
ia64:
libxml2-2.5.10-13.i386.rpm
libxml2-2.5.10-13.ia64.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.ia64.rpm
libxml2-devel-2.5.10-13.ia64.rpm
libxml2-python-2.5.10-13.ia64.rpm
x86_64:
libxml2-2.5.10-13.i386.rpm
libxml2-2.5.10-13.x86_64.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.x86_64.rpm
libxml2-devel-2.5.10-13.x86_64.rpm
libxml2-python-2.5.10-13.x86_64.rpm
Red Hat Enterprise Linux WS version 3:
Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/libxml2-2.5.10-13.src.rpm
i386:
libxml2-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-devel-2.5.10-13.i386.rpm
libxml2-python-2.5.10-13.i386.rpm
ia64:
libxml2-2.5.10-13.i386.rpm
libxml2-2.5.10-13.ia64.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.ia64.rpm
libxml2-devel-2.5.10-13.ia64.rpm
libxml2-python-2.5.10-13.ia64.rpm
x86_64:
libxml2-2.5.10-13.i386.rpm
libxml2-2.5.10-13.x86_64.rpm
libxml2-debuginfo-2.5.10-13.i386.rpm
libxml2-debuginfo-2.5.10-13.x86_64.rpm
libxml2-devel-2.5.10-13.x86_64.rpm
libxml2-python-2.5.10-13.x86_64.rpm
Red Hat Enterprise Linux AS version 4:
Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/libxml2-2.6.16-12.5.src.rpm
i386:
libxml2-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-devel-2.6.16-12.5.i386.rpm
libxml2-python-2.6.16-12.5.i386.rpm
ia64:
libxml2-2.6.16-12.5.i386.rpm
libxml2-2.6.16-12.5.ia64.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.ia64.rpm
libxml2-devel-2.6.16-12.5.ia64.rpm
libxml2-python-2.6.16-12.5.ia64.rpm
ppc:
libxml2-2.6.16-12.5.ppc.rpm
libxml2-2.6.16-12.5.ppc64.rpm
libxml2-debuginfo-2.6.16-12.5.ppc.rpm
libxml2-debuginfo-2.6.16-12.5.ppc64.rpm
libxml2-devel-2.6.16-12.5.ppc.rpm
libxml2-python-2.6.16-12.5.ppc.rpm
s390:
libxml2-2.6.16-12.5.s390.rpm
libxml2-debuginfo-2.6.16-12.5.s390.rpm
libxml2-devel-2.6.16-12.5.s390.rpm
libxml2-python-2.6.16-12.5.s390.rpm
s390x:
libxml2-2.6.16-12.5.s390.rpm
libxml2-2.6.16-12.5.s390x.rpm
libxml2-debuginfo-2.6.16-12.5.s390.rpm
libxml2-debuginfo-2.6.16-12.5.s390x.rpm
libxml2-devel-2.6.16-12.5.s390x.rpm
libxml2-python-2.6.16-12.5.s390x.rpm
x86_64:
libxml2-2.6.16-12.5.i386.rpm
libxml2-2.6.16-12.5.x86_64.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.x86_64.rpm
libxml2-devel-2.6.16-12.5.x86_64.rpm
libxml2-python-2.6.16-12.5.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/libxml2-2.6.16-12.5.src.rpm
i386:
libxml2-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-devel-2.6.16-12.5.i386.rpm
libxml2-python-2.6.16-12.5.i386.rpm
x86_64:
libxml2-2.6.16-12.5.i386.rpm
libxml2-2.6.16-12.5.x86_64.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.x86_64.rpm
libxml2-devel-2.6.16-12.5.x86_64.rpm
libxml2-python-2.6.16-12.5.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/libxml2-2.6.16-12.5.src.rpm
i386:
libxml2-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-devel-2.6.16-12.5.i386.rpm
libxml2-python-2.6.16-12.5.i386.rpm
ia64:
libxml2-2.6.16-12.5.i386.rpm
libxml2-2.6.16-12.5.ia64.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.ia64.rpm
libxml2-devel-2.6.16-12.5.ia64.rpm
libxml2-python-2.6.16-12.5.ia64.rpm
x86_64:
libxml2-2.6.16-12.5.i386.rpm
libxml2-2.6.16-12.5.x86_64.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.x86_64.rpm
libxml2-devel-2.6.16-12.5.x86_64.rpm
libxml2-python-2.6.16-12.5.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/libxml2-2.6.16-12.5.src.rpm
i386:
libxml2-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-devel-2.6.16-12.5.i386.rpm
libxml2-python-2.6.16-12.5.i386.rpm
ia64:
libxml2-2.6.16-12.5.i386.rpm
libxml2-2.6.16-12.5.ia64.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.ia64.rpm
libxml2-devel-2.6.16-12.5.ia64.rpm
libxml2-python-2.6.16-12.5.ia64.rpm
x86_64:
libxml2-2.6.16-12.5.i386.rpm
libxml2-2.6.16-12.5.x86_64.rpm
libxml2-debuginfo-2.6.16-12.5.i386.rpm
libxml2-debuginfo-2.6.16-12.5.x86_64.rpm
libxml2-devel-2.6.16-12.5.x86_64.rpm
libxml2-python-2.6.16-12.5.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxml2-2.6.26-2.1.2.6.src.rpm
i386:
libxml2-2.6.26-2.1.2.6.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.i386.rpm
libxml2-python-2.6.26-2.1.2.6.i386.rpm
x86_64:
libxml2-2.6.26-2.1.2.6.i386.rpm
libxml2-2.6.26-2.1.2.6.x86_64.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.x86_64.rpm
libxml2-python-2.6.26-2.1.2.6.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxml2-2.6.26-2.1.2.6.src.rpm
i386:
libxml2-debuginfo-2.6.26-2.1.2.6.i386.rpm
libxml2-devel-2.6.26-2.1.2.6.i386.rpm
x86_64:
libxml2-debuginfo-2.6.26-2.1.2.6.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.x86_64.rpm
libxml2-devel-2.6.26-2.1.2.6.i386.rpm
libxml2-devel-2.6.26-2.1.2.6.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/libxml2-2.6.26-2.1.2.6.src.rpm
i386:
libxml2-2.6.26-2.1.2.6.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.i386.rpm
libxml2-devel-2.6.26-2.1.2.6.i386.rpm
libxml2-python-2.6.26-2.1.2.6.i386.rpm
ia64:
libxml2-2.6.26-2.1.2.6.i386.rpm
libxml2-2.6.26-2.1.2.6.ia64.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.ia64.rpm
libxml2-devel-2.6.26-2.1.2.6.ia64.rpm
libxml2-python-2.6.26-2.1.2.6.ia64.rpm
ppc:
libxml2-2.6.26-2.1.2.6.ppc.rpm
libxml2-2.6.26-2.1.2.6.ppc64.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.ppc.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.ppc64.rpm
libxml2-devel-2.6.26-2.1.2.6.ppc.rpm
libxml2-devel-2.6.26-2.1.2.6.ppc64.rpm
libxml2-python-2.6.26-2.1.2.6.ppc.rpm
s390x:
libxml2-2.6.26-2.1.2.6.s390.rpm
libxml2-2.6.26-2.1.2.6.s390x.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.s390.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.s390x.rpm
libxml2-devel-2.6.26-2.1.2.6.s390.rpm
libxml2-devel-2.6.26-2.1.2.6.s390x.rpm
libxml2-python-2.6.26-2.1.2.6.s390x.rpm
x86_64:
libxml2-2.6.26-2.1.2.6.i386.rpm
libxml2-2.6.26-2.1.2.6.x86_64.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.6.x86_64.rpm
libxml2-devel-2.6.26-2.1.2.6.i386.rpm
libxml2-devel-2.6.26-2.1.2.6.x86_64.rpm
libxml2-python-2.6.26-2.1.2.6.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-2008-3529
http://www.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2008 Red Hat, Inc.
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