Red Hat Security Advisory
Synopsis: Updated Subversion packages fix security vulnerability
in neon
Advisory ID: RHSA-2004:159-01
Issue date: 2004-04-15
Updated on: 2004-04-15
Product: Red Hat Linux
Keywords:
Cross references:
Obsoletes:
CVE Names: CAN-2004-0179
1. Topic:
Updated Subversion packages that fix a vulnerability in neon,
exploitable by a malicious DAV server, are now available.
2. Relevant releases/architectures:
Red Hat Linux 9 – i386
3. Problem description:
Subversion is a concurrent version control system that uses
inbuilt code from neon, an HTTP and WebDAV client library.
Versions of the neon client library up to and including 0.24.4
have been found to contain a number of format string bugs. An
attacker could create a malicious WebDAV server in such a way as to
allow arbitrary code execution on the client should a user connect
to it using subversion. The Common Vulnerabilities and Exposures
project (cve.mitre.org/) has
assigned the name CAN-2004-0179 to this issue.
This update includes a patch to correct this issue, and an
upgrade to Subversion 0.27.0, the last version which is compatible
with the database schema used by Subversion 0.17.0. Users of
Subversion are advised to upgrade to these updated packages.
4. Solution:
Before applying this update, make sure all previously released
errata relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade.
Only those RPMs which are currently installed will be updated.
Those RPMs which are not installed but included in the list will
not be updated. Note that you can also use wildcards (*.rpm) if
your current directory only contains the desired RPMs.
Please note that this update is also available via Red Hat
Network. Many people find this an easier way to apply updates. To
use Red Hat Network, launch the Red Hat Update Agent with the
following command:
up2date
This will start an interactive process that will result in the
appropriate RPMs being upgraded on your system.
If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the up2date
client with an updated certificate. The latest version of up2date
is available from the Red Hat FTP site and may also be downloaded
directly from the RHN website:
https://rhn.redhat.com/help/latest-up2date.pxt
5. RPMs required:
Red Hat Linux 9:
SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/subversion-0.27.0-2.src.rpm
i386:
ftp://updates.redhat.com/9/en/os/i386/subversion-0.27.0-2.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/subversion-devel-0.27.0-2.i386.rpm
6. Verification:
MD5 sum Package Name
690c5d22e0f2baaf19f554f3466981b9
9/en/os/SRPMS/subversion-0.27.0-2.src.rpm
2a20d39d786e5ca72617a0719266e01d
9/en/os/i386/subversion-0.27.0-2.i386.rpm
c811a52c5b714e5700afc394f48b4c52
9/en/os/i386/subversion-devel-0.27.0-2.i386.rpm
These packages are GPG signed by Red Hat for security. Our key
is available from https://www.redhat.com/security/team/key.html
You can verify each package with the following command:
rpm –checksig -v <filename>
If you only wish to verify that each package has not been
corrupted or tampered with, examine only the md5sum with the
following command:
md5sum <filename>
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0179
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More
contact details at https://www.redhat.com/security/team/contact.html
Copyright 2004 Red Hat, Inc.