RHSA-2007:0164 - Security Advisory

Topic

Updated mod_jk packages that fix a security issue are now available for Red
Hat Application Server v2.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

Description

mod_jk is a Tomcat connector that can be used to communicate between Tomcat
and the Apache HTTP Server 2.

A stack overflow flaw was found in the URI handler of mod_jk. A remote
attacker could visit a carefully crafted URL being handled by mod_jk and
trigger this flaw, which could lead to the execution of arbitrary code as the
'apache' user. (CVE-2007-0774)

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

Red Hat would like to thank TippingPoint and the Zero Day Initiative for
reporting this issue.

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 Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Affected Products

• Red Hat Application Server v.2 2 x86_64
• Red Hat Application Server v.2 2 ppc
• Red Hat Application Server v.2 2 ia64
• Red Hat Application Server v.2 2 i386

Fixes

• BZ - 236182 - CVE-2007-0774 mod_jk overflow flaw

CVEs

• CVE-2007-0774

References

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