Gentoo Linux Security Advisory GLSA 200809-09 - A memory leak in Postfix might allow local users to cause a Denial of Service. It has been discovered than Postfix leaks an epoll file descriptor when executing external commands, e.g. user-controlled $HOME/.forward or $HOME/.procmailrc files. NOTE: This vulnerability only concerns Postfix instances running on Linux 2.6 kernels. Versions less than 2.4.9 are affected.
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Denial of service exploit for Postfix versions 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel.
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Ubuntu Security Notice 642-1 - Wietse Venema discovered that Postfix leaked internal file descriptors when executing non-Postfix commands. A local attacker could exploit this to cause Postfix to run out of descriptors, leading to a denial of service.
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Mandriva Linux Security Advisory - A vulnerability in Postfix 2.4 and later was discovered, when running on Linux kernel 2.6, where a local user could cause a denial of service due to Postfix leaking the epoll file descriptor when executing non-Postfix commands. The updated packages have been patched to correct this issue.
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