cache_util.c in the mod_cache module in Apache HTTP Server (httpd), when caching is enabled and a threaded Multi-Processing Module (MPM) is used, allows remote attackers to cause a denial of service (child processing handler crash) via a request with the (1) s-maxage, (2) max-age, (3) min-fresh, or (4) max-stale Cache-Control headers without a value.
https://rhn.redhat.com/errata/RHSA-2007-0533.html
http://www.vupen.com/english/advisories/2008/1697
http://www.vupen.com/english/advisories/2008/0233
http://www.vupen.com/english/advisories/2007/3386
http://www.vupen.com/english/advisories/2007/3283
http://www.vupen.com/english/advisories/2007/2727
http://www.ubuntu.com/usn/usn-499-1
http://www.securitytracker.com/id?1018303
http://www.securityfocus.com/bid/24649
http://www.securityfocus.com/archive/1/505990/100/0/threaded
http://www.redhat.com/archives/fedora-package-announce/2007-September/msg00320.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:141
http://www.mandriva.com/security/advisories?name=MDKSA-2007:140
http://www.fujitsu.com/global/support/software/security/products-f/interstage-200802e.html
http://www-1.ibm.com/support/docview.wss?uid=swg1PK52702
http://www-1.ibm.com/support/docview.wss?uid=swg1PK49355
http://svn.apache.org/viewvc?view=rev&revision=535617
http://support.avaya.com/elmodocs2/security/ASA-2007-353.htm
http://security.gentoo.org/glsa/glsa-200711-06.xml
http://rhn.redhat.com/errata/RHSA-2007-0556.html
http://rhn.redhat.com/errata/RHSA-2007-0534.html
http://lists.vmware.com/pipermail/security-announce/2009/000062.html
http://lists.apple.com/archives/security-announce/2008//May/msg00001.html
http://httpd.apache.org/security/vulnerabilities_22.html
http://httpd.apache.org/security/vulnerabilities_20.html