Gld, a greylisting server for Postfix, is vulnerable to buffer overflows in the code contained within server.c and cnf.c. Gld is run by root by default, meaning this is a remote-root-class issue.
398a498a2c6d9de9531d7a8a48c1683fe5a153b91ff1584453c5367b7c65add8
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Gentoo Linux Security Advisory GLSA 200504-10
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http://security.gentoo.org/
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Severity: High
Title: Gld: Remote execution of arbitrary code
Date: April 13, 2005
Bugs: #88904
ID: 200504-10
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Synopsis
========
Gld contains several serious vulnerabilities, potentially resulting in
the execution of arbitrary code as the root user.
Background
==========
Gld is a standalone greylisting server for Postfix.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 mail-filter/gld <= 1.4 >= 1.5
Description
===========
dong-hun discovered several buffer overflows in server.c, as well as
several format string vulnerabilities in cnf.c.
Impact
======
An attacker could exploit this vulnerability to execute arbitrary code
with the permissions of the user running Gld, the default user being
root.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Gld users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/gld-1.5"
References
==========
[ 1 ] SecurityTracker ID 1013678
http://securitytracker.com/alerts/2005/Apr/1013678.html
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200504-10.xml
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.
License
=======
Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0