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Gentoo Linux Security Advisory                           GLSA 200503-20
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                                            https://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:

  https://security.gentoo.org/glsa/200503-20

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
https://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.

https://creativecommons.org/licenses/by-sa/2.0/