RHSA-2007:0957 - Security Advisory

Topic

Updated opal 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.

Description

Open Phone Abstraction Library (opal) is implementation of various
telephony and video communication protocols for use over packet based
networks.

In Red Hat Enterprise Linux 5, the Ekiga application uses opal.

A flaw was discovered in the way opal handled certain Session Initiation
Protocol (SIP) packets. An attacker could use this flaw to crash an
application, such as Ekiga, which is linked with opal. (CVE-2007-4924)

Users should upgrade to these updated opal packages which contain a
backported patch to correct this issue.

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

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 296371 - CVE-2007-4924 ekiga remote crash caused by insufficient input validation

CVEs

• CVE-2007-4924

References

• http://www.redhat.com/security/updates/classification/#moderate