[IT-SecNots] [SECURITY] [DSA 3436-1] openssl security update

[Salvatore Bonaccorso <carnil AT debian.org>]

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Debian Security Advisory DSA-3436-1                   security AT debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
January 08, 2016                      https://www.debian.org/security/faq
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Package        : openssl
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 1.0.1e-2+deb7u19.

For the stable distribution (jessie), the testing distribution (stretch)
and the unstable distribution (sid), this issue was already addressed in
version 1.0.1f-1.

We recommend that you upgrade your openssl 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 AT lists.debian.org
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