CGI.pm module before 3.63 for Perl does not properly escape newlines in (1) Set-Cookie or (2) P3P headers, which might allow remote attackers to inject arbitrary headers into responses from applications that use CGI.pm.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-5526
• https://github.com/markstos/CGI.pm/pull/23
• https://exchange.xforce.ibmcloud.com/vulnerabilities/80098
• http://cpansearch.perl.org/src/MARKSTOS/CGI.pm-3.63/Changes
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
• http://rhn.redhat.com/errata/RHSA-2013-0685.html
• http://secunia.com/advisories/51457
• http://secunia.com/advisories/55314
• http://www.debian.org/security/2012/dsa-2586
• http://www.openwall.com/lists/oss-security/2012/11/15/6
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.securityfocus.com/bid/56562
• http://www.securitytracker.com/id?1027780
• http://www.ubuntu.com/usn/USN-1643-1