Security Advisory Important: mod_jk security update

Advisory: RHSA-2009:0446-1
Type: Security Advisory
Severity: Important
Issued on: 2009-04-23
Last updated on: 2009-04-23
Affected Products: Red Hat Application Stack v2
CVEs ( CVE-2008-5519


An updated mod_jk package that fixes a security issue is now available for
Red Hat Application Stack v2.

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

mod_jk is an Apache Tomcat connector that allows Apache Tomcat and the
Apache HTTP Server to communicate with each other.

An information disclosure flaw was found in mod_jk. In certain situations,
if a faulty client set the "Content-Length" header without providing data,
or if a user sent repeated requests very quickly, one user may view a
response intended for another user. (CVE-2008-5519)

As well, the sample configuration files provided in the documentation have
been updated to reflect recommended practice.

All mod_jk users are advised to upgrade to this updated package. It
provides mod_jk 1.2.28, which is not vulnerable to this issue.


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

Updated packages

Red Hat Application Stack v2

File outdated by:  RHSA-2009:1067
    MD5: 5d2c970a1cd1d450a817a7300f523145
File outdated by:  RHSA-2009:1067
    MD5: fcbde37593736eea28f82923a48c4ab7
File outdated by:  RHSA-2009:1067
    MD5: 7812cd0c3e5cb3df7b98246b174878c7
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

490201 - CVE-2008-5519 mod_jk: session information leak


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