AOH :: HP Unsorted C :: B06-1132.HTM

Curl/libcurl: buffer overflow in the handling of tftp urls



cURL/libcurl: Buffer overflow in the handling of TFTP URLs
cURL/libcurl: Buffer overflow in the handling of TFTP URLs



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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      < 7.15.3                         *>= 7.15.1-r1
                                                              >= 7.15.3
                                                              <= 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 ">=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 


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