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Gentoo Linux Security Advisory                           GLSA 201701-44
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: CVS: Heap-based overflow
     Date: January 19, 2017
     Bugs: #402593
       ID: 201701-44

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Synopsis
=======
A heap-based buffer overflow in CVS might allow remote attackers to
execute arbitrary code.

Background
=========
CVS (Concurrent Versions System) is an open-source network-transparent
version control system. It contains both a client utility and a server.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-vcs/cvs               < 1.12.12-r11           >= 1.12.12-r11

Description
==========
A heap-based buffer overflow was discovered in the proxy_connect
function in src/client.c in CVS.

Impact
=====
An attacker, utilizing a remote HTTP proxy server, could cause a Denial
of Service condition or possibly execute arbitrary code via a crafted
HTTP response.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All CVS users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-vcs/cvs-1.12.12-r11"

References
=========
[ 1 ] CVE-2012-0804
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0804

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

 https://security.gentoo.org/glsa/201701-44

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 2017 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/2.5/