bugtraq - [SECURITY] [DSA 3437-1] gnutls26 security update

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Message-Id: <E1aHsLd-00006p-5z@master.debian.org>
Date: Sat, 09 Jan 2016 12:10:21 +0000
From: Salvatore Bonaccorso <carnil@...ian.org>
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 3437-1] gnutls26 security update

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-3437-1                   security@...ian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
January 09, 2016                      https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : gnutls26
CVE ID         : CVE-2015-7575

Karthikeyan Bhargavan and Gaetan Leurent at INRIA discovered a flaw in
the TLS 1.2 protocol which could allow the MD5 hash function to be used
for signing ServerKeyExchange and Client Authentication packets during a
TLS handshake. A man-in-the-middle attacker could exploit this flaw to
conduct collision attacks to impersonate a TLS server or an
authenticated TLS client.

More information can be found at
https://www.mitls.org/pages/attacks/SLOTH

For the oldstable distribution (wheezy), this problem has been fixed
in version 2.12.20-8+deb7u5.

We recommend that you upgrade your gnutls26 packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@...ts.debian.org
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