GLSA 200503-20: curl: NTLM response buffer overflow
Posted on: 03/16/2005 12:08 PM

A curl security update is available for Gentoo Linux

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200503-20
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: curl: NTLM response buffer overflow
Date: March 16, 2005
Bugs: #82534
ID: 200503-20

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

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 lt; 7.13.1 gt;= 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 "gt;=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


Printed from Linux Compatible (http://www.linuxcompatible.org/news/story/glsa_200503_20_curl_ntlm_response_buffer_overflow.html)