Home / mailings [gentoo-announce] [ GLSA 201710-15 ] GnuTLS: Denial of Service
Posted on 15 October 2017
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Gentoo Linux Security Advisory GLSA 201710-15
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https://security.gentoo.org/
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Severity: Normal
Title: GnuTLS: Denial of Service
Date: October 15, 2017
Bugs: #622038
ID: 201710-15
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Synopsis
========
A null pointer dereference in GnuTLS might allow attackers to cause a
Denial of Service condition.
Background
==========
GnuTLS is a secure communications library implementing the SSL, TLS and
DTLS protocols and technologies around them.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-libs/gnutls < 3.5.13 >= 3.5.13
Description
===========
A null pointer dereference while decoding a status response TLS
extension with valid contents was discovered in GnuTLS.
Impact
======
A remote attacker could possibly cause a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All GnuTLS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.5.13"
Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these
packages.
References
==========
[ 1 ] CVE-2017-7507
https://nvd.nist.gov/vuln/detail/CVE-2017-7507
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201710-15
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.
http://creativecommons.org/licenses/by-sa/2.5
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