[ GLSA 200503-20 ] curl: NTLM response buffer overflow
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200503-20 ] curl: NTLM response buffer overflow
Date: Wed, 16 Mar 2005 17:32:02 +0100
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Organization: Gentoo Linux Security Team
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Gentoo Linux Security Advisory GLSA 200503-20
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http://security.gentoo.org/
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Severity: Normal
Title: curl: NTLM response buffer overflow
Date: March 16, 2005
Bugs: #82534
ID: 200503-20
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Synopsis
========
curl is vulnerable to a buffer overflow which could lead to the
execution of arbitrary code.
Background
==========
curl is a command line tool for transferring files via many different
protocols.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/curl < 7.13.1 >= 7.13.1
Description
===========
curl fails to properly check boundaries when handling NTLM
authentication.
Impact
======
With a malicious server an attacker could send a carefully crafted NTLM
response to a connecting client leading to the execution of arbitrary
code with the permissions of the user running curl.
Workaround
==========
Disable NTLM authentication by not using the --anyauth or --ntlm
options.
Resolution
==========
All curl users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/curl-7.13.1"
References
==========
[ 1 ] CAN-2005-0490
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0490
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200503-20.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
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