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Fedora Legacy Update Advisory
Synopsis: Updated pwlib resolves security vulnerability
Advisory ID: FLSA:1296
Issue date: 2004-05-18
Product: Red Hat Linux
Keywords: Security
Cross references: https://bugzilla.fedora.us/show_bug.cgi?id=1296
CVE Names: CAN-2004-0097
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1. Topic:
Updated PWLib packages that contain fixes for security issues found during
protocol testing by the NISCC are now available.
2. Relevent releases/architectures:
Red Hat Linux 7.3 - i386
Red Hat Linux 8.0 - i386
3. Problem description:
PWLib is a cross-platform class library designed to support the OpenH323
project. OpenH323 provides an implementation of the ITU H.323
teleconferencing protocol, used by packages such as Gnome Meeting.
A test suite for the H.225 protocol (part of the H.323 family) provided by
the NISCC uncovered bugs in PWLib prior to version 1.6.0. An attacker
could trigger these bugs by sending carefully crafted messages to an
application. The effects of such an attack can vary depending on the
application, but would usually result in a Denial of Service. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CAN-2004-0097 to this issue.
Users are advised to upgrade to the erratum packages, which contain
backported security fixes and are not vulnerable to these issues.
Fedora Legacy would like to thank Johnny Strom for notification of this
issue.
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 yum and apt. Many
people find this an easier way to apply updates. To use yum issue:
yum update
or to use apt:
apt-get update; apt-get upgrade
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system. This assumes that you have yum or
apt-get configured for obtaining Fedora Legacy content. Please visit
http://www fedoralegacy.org/docs for directions on how to configure yum
and apt-get.
5. Bug IDs fixed:
http://bugzilla.fedora.us - 1296 - PWLib: Carefully crafted messages can
cause a Denial of Service on a application.
6. RPMs required:
Red Hat Linux 7.3:
SRPM:
http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/pwlib-1.2.12-4.legacy.src.rpm
i386:
http://download.fedoralegacy.org/redhat/7.3/updates/i386/pwlib-1.2.12-4.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/7.3/updates/i386/pwlib-devel-1.2.12-4.legacy.i386.rpm
Red Hat Linux 8.0:
SRPM:
http://download.fedoralegacy.org/redhat/8.0/updates/SRPMS/pwlib-1.3.3-6.legacy.src.rpm
i386:
http://download.fedoralegacy.org/redhat/8.0/updates/i386/pwlib-1.3.3-6.legacy.i386.rpm
http://download.fedoralegacy.org/redhat/8.0/updates/i386/pwlib-devel-1.3.3-6.legacy.i386.rpm
7. Verification:
SHA1 sum Package Name
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083f52e7339aabe4b123506b37d6638fd6ff0114
7.3/updates/SRPMS/pwlib-1.2.12-4.legacy.src.rpm
bfccb74ebed5ae978ca99efe0e33504a27efcb66
7.3/updates/i386/pwlib-1.2.12-4.legacy.i386.rpm
4540e6e0cb3cf8d388dda9616d5ca6d0818afc7f
7.3/updates/i386/pwlib-devel-1.2.12-4.legacy.i386.rpm
798cc21e3741fd7a984ba8f8287f1ceaac84a3ae
8.0/updates/SRPMS/pwlib-1.3.3-6.legacy.src.rpm
5b7f740057678c6d0ce83a7aefec56a7cc69a0eb
8.0/updates/i386/pwlib-1.3.3-6.legacy.i386.rpm
6c35dd204c72d5ffb114d63dcc1fce733050b511
8.0/updates/i386/pwlib-devel-1.3.3-6.legacy.i386.rpm
These packages are GPG signed by Fedora Legacy for security. Our key is
available from http://www.fedoralegacy.org/about/security.php
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 sha1sum with the following command:
sha1sum <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0097
https://rhn.redhat.com/errata/RHSA-2004-048.html
https://bugzilla.fedora.us/show_bug.cgi?id=1296
9. Contact:
The Fedora Legacy security contact is <secnotice@xxxxxxxxxxxxxxxx>. More
project details at http://www.fedoralegacy.org
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Jesse Keating RHCE (http://geek.j2solutions.net)
Fedora Legacy Team (http://www.fedoralegacy.org)
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