Joined: 12 May 2004
|Posted: Fri Aug 04, 2006 6:26 am Post subject: [ GLSA 200608-06 ] Courier MTA: Denial of Service vulnerabil
|Gentoo Linux Security Advisory
Title: Courier MTA: Denial of Service vulnerability (GLSA 200608-06)
Date: August 04, 2006
Courier MTA has fixed a DoS issue related to usernames containing a "=" character.
Courier MTA is an integrated mail and groupware server based on open protocols.
Vulnerable: < 0.53.2
Unaffected: >= 0.53.2
Architectures: All supported architectures
Courier MTA has fixed a security issue relating to usernames containing the "=" character, causing high CPU utilization.
An attacker could exploit this vulnerability by sending a specially crafted email to a mail gateway running a vulnerable version of Courier MTA.
There is no known workaround at this time.
All Courier MTA users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/courier-0.53.2"