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Sicherheit: Absturz in fetchmail
Aktuelle Meldungen Distributionen
Name: Absturz in fetchmail
ID: 200403-10
Distribution: Gentoo
Plattformen: Keine Angabe
Datum: Do, 1. April 2004, 13:00
Referenzen: Keine Angabe
Applikationen: Fetchmail

Originalnachricht

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Gentoo Linux Security Advisory GLSA 200403-10
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http://security.gentoo.org
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Severity: Normal
Title: Fetchmail 6.2.5 fixes a remote DoS
Date: March 30, 2004
Bugs: #37717
ID: 200403-10

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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.cgi?name=CAN-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.
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