Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4863
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100112
https://exchange.xforce.ibmcloud.com/vulnerabilities/16387
https://bugzilla.fedora.us/show_bug.cgi?id=1737
http://www.mandriva.com/security/advisories?name=MDKSA-2004:065
http://www.kb.cert.org/vuls/id/541310
http://www.guninski.com/modproxy1.html
http://www.debian.org/security/2004/dsa-525
http://sunsolve.sun.com/search/document.do?assetkey=1-26-57628-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101841-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101555-1
http://secunia.com/advisories/11841
http://seclists.org/lists/fulldisclosure/2004/Jun/0296.html
http://rhn.redhat.com/errata/RHSA-2004-245.html