RHEL 2.1 : fetchmail (RHSA-2002:294)
High Nessus Plugin ID 12342
SynopsisThe remote Red Hat host is missing one or more security updates.
DescriptionUpdated Fetchmail packages are available for Red Hat Linux Advanced Server which close a remotely-exploitable vulnerability in unpatched versions of Fetchmail prior to 6.2.0.
[Updated 06 Feb 2003] Added fixed packages for Advanced Workstation
Fetchmail is a remote mail retrieval and forwarding utility intended for use over on-demand TCP/IP links such as SLIP and PPP connections.
A bug has been found in the header parsing code in versions of Fetchmail prior to 6.2.0.
The bug allows a remote attacker to crash Fetchmail and potentially execute arbitrary code by sending a carefully crafted email which is parsed by Fetchmail.
All users of Fetchmail are advised to upgrade to the errata packages containing a backported fix which corrects this issue.
SolutionUpdate the affected fetchmail and / or fetchmailconf packages.