CVE-2012-0021 Information

Description

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21 when a threaded MPM is used does not properly handle a C format string which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.

Reference

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 http://httpd.apache.org/security/vulnerabilities_22.html http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html http://marc.info/?l=bugtraq&m=133294460209056&w=2 http://marc.info/?l=bugtraq&m=133494237717847&w=2 http://rhn.redhat.com/errata/RHSA-2012-0542.html http://rhn.redhat.com/errata/RHSA-2012-0543.html http://secunia.com/advisories/48551 http://support.apple.com/kb/HT5501 http://svn.apache.org/viewvc?view=revision&revision=1227292 http://www.mandriva.com/security/advisories?name=MDVSA-2012:012 http://www.mandriva.com/security/advisories?name=MDVSA-2013:150 http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html https://bugzilla.redhat.com/show_bug.cgi?id=785065 https://issues.apache.org/bugzilla/show_bug.cgi?id=52256 https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f@3Ccvs.httpd.apache.org3E https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53@3Ccvs.httpd.apache.org3E https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7@3Ccvs.httpd.apache.org3E https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b@3Ccvs.httpd.apache.org3E