RHSA-2012:1538 - Security Advisory

Topic

An updated jabberd package that fixes one security issue is now available
for Red Hat Network Satellite 5.5 for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having low
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

This package provides jabberd 2, an Extensible Messaging and Presence
Protocol (XMPP) server used for XML based communication.

It was discovered that the XMPP Dialback protocol implementation in
jabberd 2 did not properly validate Verify Response and Authorization
Response messages. A remote attacker able to connect to the jabberd's
server-to-server communication port could possibly use this flaw to spoof
source domains of the XMPP messages. (CVE-2012-3525)

Users of Red Hat Network Satellite 5.5 are advised to upgrade to this
updated jabberd package, which resolves this issue. For this update to take
effect, Red Hat Network Satellite must be restarted. Refer to the Solution
section for details.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Run the following command to restart the Red Hat Network Satellite
server:

# rhn-satellite restart

Affected Products

• Red Hat Satellite with Embedded Oracle 5.5 for RHEL 6 x86_64
• Red Hat Satellite with Embedded Oracle 5.5 for RHEL 6 s390x
• Red Hat Satellite with Embedded Oracle 5.5 for RHEL 5 x86_64

Fixes

• BZ - 850872 - CVE-2012-3525 jabberd: Prone to unsolicited XMPP Dialback attacks

CVEs

• CVE-2012-3525

References

• https://access.redhat.com/security/updates/classification/#low