CVE-2008-2936

Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.

🔗 References (66)

• secalert@redhatftp://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-2.6-20080814.HISTORY
• secalert@redhatftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.3.15.HISTORY
• secalert@redhatftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.4.8.HISTORY
• secalert@redhatftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.5.4.HISTORY
• secalert@redhathttp://article.gmane.org/gmane.mail.postfix.announce/110
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2008-08/msg00002.html
• secalert@redhathttp://secunia.com/advisories/31469
• secalert@redhathttp://secunia.com/advisories/31474
• secalert@redhathttp://secunia.com/advisories/31477
• secalert@redhathttp://secunia.com/advisories/31485
• secalert@redhathttp://secunia.com/advisories/31500
• secalert@redhathttp://secunia.com/advisories/31530
• secalert@redhathttp://secunia.com/advisories/32231
• secalert@redhathttp://security.gentoo.org/glsa/glsa-200808-12.xml
• secalert@redhathttp://securityreason.com/securityalert/4160