[ GLSA 200403-10 ] Fetchmail 6.2.5 fixes a remote DoS

[pahud]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200403-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Fetchmail 6.2.5 fixes a remote DoS
Date: March 30, 2004
Bugs: #37717
ID: 200403-10

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

Fetchmail versions 6.2.4 and earlier can be crashed by sending a
specially-crafted email to a fetchmail user.

Background
==========

Fetchmail is a utility that retrieves and forwards mail from remote
systems using IMAP, POP, and other protocols.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
net-mail/fetchmail <= 6.2.4 >= 6.2.5

Description
===========

Fetchmail versions 6.2.4 and earlier can be crashed by sending a
specially-crafted email to a fetchmail user. This problem occurs
because Fetchmail does not properly allocate memory for long lines in
an incoming email.

Impact
======

Fetchmail users who receive a malicious email may have their fetchmail
program crash.

Workaround
==========

While a workaround is not currently known for this issue, all users are
advised to upgrade to the latest version of the affected package.

Resolution
==========

Fetchmail users should upgrade to version 6.2.5 or later:

# emerge sync
# emerge -pv ">=net-mail/fetchmail-6.2.5"
# emerge ">=net-mail/fetchmail-6.2.5"

References
==========

[ 1 ] http://xforce.iss.net/xforce/xfdb/13450
[ 2 ] http://cve.mitre.org/cgi-bin/cvename.cg ... -2003-0792

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.