Gentoo Linux Security Advisory 201606-1 - Multiple vulnerabilities have been found in PuTTY, the worst of which could lead to arbitrary code execution, or cause a Denial of Service condition. Versions less than 0.67 are affected.
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From: Yury German <blueknight@gentoo.org>
Reply-To: blueknight@gentoo.org
To: gentoo-announce@lists.gentoo.org
Message-ID: <636b0e86-be3d-e1ab-8af0-c88045a44fff@gentoo.org>
Subject: [ GLSA 201606-01 ] PuTTY: Multiple vulnerabilities
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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
=================
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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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