Use-after-free in nginx - CVE-2012-1180

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing a crafted backend response, in conjunction with a client request. A remote HTTP servers can obtain sensitive information from process memory.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

How to mitigate CVE-2012-1180

Sources

• http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077966.html
• http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076646.html
• http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076671.html
• http://nginx.org/download/patch.2012.memory.txt
• http://nginx.org/en/security_advisories.html
• http://osvdb.org/80124
• http://seclists.org/bugtraq/2012/Mar/65
• http://secunia.com/advisories/48465
• http://secunia.com/advisories/48577
• http://security.gentoo.org/glsa/glsa-201203-22.xml
• http://trac.nginx.org/nginx/changeset/4530/nginx
• http://trac.nginx.org/nginx/changeset/4531/nginx
• http://www.debian.org/security/2012/dsa-2434
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:043
• http://www.openwall.com/lists/oss-security/2012/03/15/5
• http://www.openwall.com/lists/oss-security/2012/03/15/9
• http://www.securityfocus.com/bid/52578
• http://www.securitytracker.com/id?1026827
• https://bugzilla.redhat.com/show_bug.cgi?id=803856
• https://exchange.xforce.ibmcloud.com/vulnerabilities/74191
• https://hermes.opensuse.org/messages/14173096