CVE-2008-2936
Publication date 18 August 2008
Last updated 24 July 2024
Ubuntu priority
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.
Notes
jdstrand
requires postfix as delivery agent, no root alias, no mail delivered to root, and the 'mail' account (or an application in the 'mail' group) to be compromised