RHSA-2007:0131 - Security Advisory

Topic

An updated squid package that fixes a security vulnerability is 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

Squid is a high-performance proxy caching server for Web clients,
supporting FTP, gopher, and HTTP data objects.

A denial of service flaw was found in the way Squid processed the TRACE
request method. It was possible for an attacker behind the Squid proxy
to issue a malformed TRACE request, crashing the Squid daemon child
process. As long as these requests were sent, it would prevent
legitimate usage of the proxy server. (CVE-2007-1560)

This flaw does not affect the version of Squid shipped in Red Hat
Enterprise Linux 2.1, 3, or 4.

Users of Squid should upgrade to this updated package, which contains a
backported patch and is not vulnerable to 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 ia64
• 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 for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 233253 - CVE-2007-1560 Squid TRACE DoS

CVEs

• CVE-2007-1560

References

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