Format string vulnerability in the mod_proxy hook functions function in ssl_engine_log.c in mod_ssl before 2.8.19 for Apache before 1.3.31 may allow remote attackers to execute arbitrary messages via format string specifiers in certain log messages for HTTPS that are handled by the ssl_log function.
https://exchange.xforce.ibmcloud.com/vulnerabilities/16705
https://bugzilla.fedora.us/show_bug.cgi?id=1888
http://www.ubuntu.com/usn/usn-177-1
http://www.securityfocus.com/bid/10736
http://www.redhat.com/support/errata/RHSA-2004-408.html
http://www.redhat.com/support/errata/RHSA-2004-405.html
http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2004:075
http://www.kb.cert.org/vuls/id/303448
http://www.debian.org/security/2004/dsa-532
http://virulent.siyahsapka.org/
http://packetstormsecurity.org/0407-advisories/modsslFormat.txt
http://marc.info/?l=bugtraq&m=109005001205991&w=2
http://marc.info/?l=apache-modssl&m=109001100906749&w=2
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000857