RedHat: Moderate: yum-rhn-plugin security update
Summary
The yum-rhn-plugin provides support for yum to securely access a Red Hat
Network (RHN) server for software updates.
It was discovered that yum-rhn-plugin did not verify the SSL certificate
for all communication with a Red Hat Network server. An attacker able to
redirect the network communication between a victim and an RHN server could
use this flaw to provide malicious repository metadata. This metadata could
be used to block the victim from receiving specific security updates.
(CVE-2008-3270)
This flaw did not allow an attacker to install malicious packages. Package
signatures were verified and only packages signed with a trusted Red Hat
GPG key were installed.
Red Hat would like to thank Justin Samuel for discussing various package
update mechanism flaws which led to our discovery of this issue.
Users of yum-rhn-plugin are advised to upgrade to this updated packages,
which resolves this issue.
Summary
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
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3270 http://www.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
noarch:
yum-rhn-plugin-0.5.3-12.el5_2.9.noarch.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
noarch:
yum-rhn-plugin-0.5.3-12.el5_2.9.noarch.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
Topic
Updated yum-rhn-plugin packages that fix a security issue are now available for Red Hat Enterprise Linux 5.
This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Desktop (v. 5 client) - noarch
Red Hat Enterprise Linux (v. 5 server) - noarch
Bugs Fixed
457113 - CVE-2008-3270 yum-rhn-plugin: does not verify SSL certificate for all communication with RHN server