Scientific Linux: SLSA-2016:0301-1 Critical: OpenSSL Security Flaws

Date: Tue, 1 Mar 2016 08:29:29 -0600
Reply-To: Pat Riehecky 
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: FASTBUGS for SL 6x i386, x86_64 now available
MIME-Version: 1.0
Message-ID: <56D5A749.3010001@fnal.gov>

The following FASTBUGS have been uploaded to

i386:
ptlib-2.6.5-5.el6.i686.rpm
ptlib-devel-2.6.5-5.el6.i686.rpm

x86_64:
ptlib-2.6.5-5.el6.i686.rpm
ptlib-2.6.5-5.el6.x86_64.rpm
ptlib-devel-2.6.5-5.el6.i686.rpm
ptlib-devel-2.6.5-5.el6.x86_64.rpm
Date: Tue, 1 Mar 2016 18:53:39 -0000
Reply-To: scientific-linux-users@
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Subject: Security ERRATA Important: openssl on SL6.x, SL7.x i386/x86_64
MIME-Version: 1.0
Message-ID: <20160301185339.26845.35478@slpackages.fnal.gov>

Synopsis: Important: openssl security update
Advisory ID: SLSA-2016:0301-1
Issue Date: 2016-03-01
CVE Numbers: CVE-2015-3197
 CVE-2016-0800
 CVE-2016-0705
 CVE-2016-0702
 CVE-2016-0797
--

A padding oracle flaw was found in the Secure Sockets Layer version 2.0
(SSLv2) protocol. An attacker can potentially use this flaw to decrypt
RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol
version, allowing them to decrypt such connections. This cross-protocol
attack is publicly referred to as DROWN. (CVE-2016-0800)

A flaw was found in the way malicious SSLv2 clients could negotiate SSLv2
ciphers that have been disabled on the server. This could result in weak
SSLv2 ciphers being used for SSLv2 connections, making them vulnerable to
man-in-the-middle attacks. (CVE-2015-3197)

A side-channel attack was found that makes use of cache-bank conflicts on
the Intel Sandy-Bridge microarchitecture. An attacker who has the ability
to control code in a thread running on the same hyper-threaded core as the
victim's thread that is performing decryption, could use this flaw to
recover RSA private keys. (CVE-2016-0702)

A double-free flaw was found in the way OpenSSL parsed certain malformed
DSA (Digital Signature Algorithm) private keys. An attacker could create
specially crafted DSA private keys that, when processed by an application
compiled against OpenSSL, could cause the application to crash.
(CVE-2016-0705)

An integer overflow flaw, leading to a NULL pointer dereference or a heap-
based memory corruption, was found in the way some BIGNUM functions of
OpenSSL were implemented. Applications that use these functions with large
untrusted input could crash or, potentially, execute arbitrary code.
(CVE-2016-0797)

For the update to take effect, all services linked to the OpenSSL library
must be restarted, or the system rebooted.
--

SL6
 x86_64
 openssl-1.0.1e-42.el6_7.4.i686.rpm
 openssl-1.0.1e-42.el6_7.4.x86_64.rpm
 openssl-debuginfo-1.0.1e-42.el6_7.4.i686.rpm
 openssl-debuginfo-1.0.1e-42.el6_7.4.x86_64.rpm
 openssl-devel-1.0.1e-42.el6_7.4.i686.rpm
 openssl-devel-1.0.1e-42.el6_7.4.x86_64.rpm
 openssl-perl-1.0.1e-42.el6_7.4.x86_64.rpm
 openssl-static-1.0.1e-42.el6_7.4.x86_64.rpm
 i386
 openssl-1.0.1e-42.el6_7.4.i686.rpm
 openssl-debuginfo-1.0.1e-42.el6_7.4.i686.rpm
 openssl-devel-1.0.1e-42.el6_7.4.i686.rpm
 openssl-perl-1.0.1e-42.el6_7.4.i686.rpm
 openssl-static-1.0.1e-42.el6_7.4.i686.rpm
SL7
 x86_64
 openssl-1.0.1e-51.el7_2.4.x86_64.rpm
 openssl-debuginfo-1.0.1e-51.el7_2.4.i686.rpm
 openssl-debuginfo-1.0.1e-51.el7_2.4.x86_64.rpm
 openssl-libs-1.0.1e-51.el7_2.4.i686.rpm
 openssl-libs-1.0.1e-51.el7_2.4.x86_64.rpm
 openssl-devel-1.0.1e-51.el7_2.4.i686.rpm
 openssl-devel-1.0.1e-51.el7_2.4.x86_64.rpm
 openssl-perl-1.0.1e-51.el7_2.4.x86_64.rpm
 openssl-static-1.0.1e-51.el7_2.4.i686.rpm
 openssl-static-1.0.1e-51.el7_2.4.x86_64.rpm

- Scientific Linux Development Team