GLSA 200603-19 cURL/libcurl: Buffer overflow in the handling of TFTP URLs

Gentoo Linux Security Advisory GLSA 200603-19
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http://security.gentoo.org/
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Severity: Normal
Title: cURL/libcurl: Buffer overflow in the handling of TFTP URLs
Date: March 21, 2006
Bugs: #125766
ID: 200603-19

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Synopsis
========

libcurl is affected by a buffer overflow in the handling of URLs for
the TFTP protocol, which could be exploited to compromise a user's
system.

Background
==========

cURL is a command line tool for transferring files with URL syntax,
supporting numerous protocols. libcurl is the corresponding client-side
library.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/curl lt; 7.15.3 *gt;= 7.15.1-r1
gt;= 7.15.3
lt;= 7.14.1

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

Ulf Harnhammar reported a possible buffer overflow in the handling of
TFTP URLs in libcurl due to the lack of boundary checks.

Impact
======

An attacker could exploit this vulnerability to compromise a user's
system by enticing the user to request a malicious URL with
cURL/libcurl or to use a HTTP server redirecting to a malicious TFTP
URL.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All cURL users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=net-misc/curl-7.15.1-r1"

References
==========

[ 1 ] Project cURL Security Advisory, March 20th 2006
http://curl.haxx.se/docs/adv_20060320.html
[ 2 ] CVE-2006-1061
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1061

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200603-19.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 2006 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