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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.

http://creativecommons.org/licenses/by-sa/2.5

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