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Gentoo Linux Security Advisory                           GLSA 201606-01
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: PuTTY: Multiple vulnerabilities
     Date: June 05, 2016
     Bugs: #565080, #576524
       ID: 201606-01

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Synopsis
=======
Multiple vulnerabilities have been found in PuTTY, the worst of which
could lead to arbitrary code execution, or cause a Denial of Service
condition.

Background
=========
PuTTY is a telnet and SSH client.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/putty                < 0.67                     >= 0.67

Description
==========
Multiple vulnerabilities have been discovered in PuTTY. Please review
the CVE identifiers referenced below for details.

Impact
=====
Stack-based buffer overflow in the SCP command-line utility allows
remote servers to execute arbitrary code or cause a denial of service
condition via a crafted SCP-SINK file-size response to an SCP download
request.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/putty-0.67"

References
=========
[ 1 ] CVE-2015-5309
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-5309
[ 2 ] CVE-2016-2563
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2563

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

 https://security.gentoo.org/glsa/201606-01

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 2016 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/