The recall_headers function in mod_mem_cache in Apache 2.2.4 does not properly copy all levels of header data, which can cause Apache to return HTTP headers containing previously used data, which could be used by remote attackers to obtain potentially sensitive information.
bugs.gentoo.org/show_bug.cgi?id=186219
httpd.apache.org/security/vulnerabilities_22.html
issues.apache.org/bugzilla/show_bug.cgi?id=41551
osvdb.org/38641
people.apache.org/~covener/2.2.x-mod_memcache-poolmgmt.diff
secunia.com/advisories/26273
secunia.com/advisories/26842
secunia.com/advisories/27563
security.gentoo.org/glsa/glsa-200711-06.xml
www.mandriva.com/security/advisories?name=MDKSA-2007:127
www.mandriva.com/security/advisories?name=MDVSA-2013:150
www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
www.redhat.com/archives/fedora-package-announce/2007-September/msg00320.html
www.securityfocus.com/bid/24553
www.vupen.com/english/advisories/2007/2231
www.vupen.com/english/advisories/2007/2727
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