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CVE-2009-2939

Status Candidate

Overview

The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.

Related Files

Debian Security Advisory 2233-1
Posted May 10, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2233-1 - Several vulnerabilities were discovered in Postfix, a mail transfer agent.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2009-2939, CVE-2011-0411, CVE-2011-1720
MD5 | 777ed4cbea09e007860b29ecab6dfc81
Ubuntu Security Notice USN-1113-1
Posted Apr 18, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1113-1 - It was discovered that the Postfix package incorrectly granted write access on the PID directory to the postfix user. A local attacker could use this flaw to possibly conduct a symlink attack and overwrite arbitrary files. This issue only affected Ubuntu 6.06 LTS and 8.04 LTS. Wietse Venema discovered that Postfix incorrectly handled cleartext commands after TLS is in place. A remote attacker could exploit this to inject cleartext commands into TLS sessions, and possibly obtain confidential information such as passwords.

tags | advisory, remote, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2009-2939, CVE-2011-0411
MD5 | 464375a0377cc432d5b348bcf1a97c40
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