bugtraq - [ MDVSA-2013:019 ] gnutls

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Date: Thu, 07 Mar 2013 18:38:00 +0100
From: security@...driva.com
To: bugtraq@...urityfocus.com
Subject: [ MDVSA-2013:019 ] gnutls

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 _______________________________________________________________________

 Mandriva Linux Security Advisory                         MDVSA-2013:019
 http://www.mandriva.com/en/support/security/
 _______________________________________________________________________

 Package : gnutls
 Date    : March 7, 2013
 Affected: Enterprise Server 5.0
 _______________________________________________________________________

 Problem Description:

 Multiple vulnerabilities has been found and corrected in gnutls:

 A flaw was found in the way the TLS/SSL (Transport Layer
 Security/Secure Sockets Layer) protocols handled session
 renegotiation. A man-in-the-middle attacker could use this flaw
 to prefix arbitrary plain text to a client&#039;s session (for example,
 an HTTPS connection to a website). This could force the server to
 process an attacker&#039;s request as if authenticated using the victim&#039;s
 credentials. This update addresses this flaw by implementing the
 TLS Renegotiation Indication Extension, as defined in RFC 5746
 (CVE-2009-3555).

 The TLS implementation in GnuTLS before 2.12.23, 3.0.x before 3.0.28,
 and 3.1.x before 3.1.7 does not properly consider timing side-channel
 attacks on a noncompliant MAC check operation during the processing
 of malformed CBC padding, which allows remote attackers to conduct
 distinguishing attacks and plaintext-recovery attacks via statistical
 analysis of timing data for crafted packets, a related issue to
 CVE-2013-0169 (CVE-2013-1619).

 The updated packages have been patched to correct these issues.
 _______________________________________________________________________

 References:

 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1619
 _______________________________________________________________________

 Updated Packages:

 Mandriva Enterprise Server 5:
 48dfde02cfa9c869bb97ec71252b8af7  mes5/i586/gnutls-2.4.1-2.8mdvmes5.2.i586.rpm
 9f534885a90c121ddb4f911d85462a42  mes5/i586/libgnutls26-2.4.1-2.8mdvmes5.2.i586.rpm
 746200c5109707c76a71060672bedfa7  mes5/i586/libgnutls-devel-2.4.1-2.8mdvmes5.2.i586.rpm 
 8c9bbb918f94a539d82ef057dc201bd2  mes5/SRPMS/gnutls-2.4.1-2.8mdvmes5.2.src.rpm

 Mandriva Enterprise Server 5/X86_64:
 dce865b93f4a52aeae1686aed09136f3  mes5/x86_64/gnutls-2.4.1-2.8mdvmes5.2.x86_64.rpm
 345540258af6fde7320c7b518c179509  mes5/x86_64/lib64gnutls26-2.4.1-2.8mdvmes5.2.x86_64.rpm
 b7c9a97fd0f01c52728fbdbc96b3ba55  mes5/x86_64/lib64gnutls-devel-2.4.1-2.8mdvmes5.2.x86_64.rpm 
 8c9bbb918f94a539d82ef057dc201bd2  mes5/SRPMS/gnutls-2.4.1-2.8mdvmes5.2.src.rpm
 _______________________________________________________________________

 To upgrade automatically use MandrivaUpdate or urpmi.  The verification
 of md5 checksums and GPG signatures is performed automatically for you.

 All packages are signed by Mandriva for security.  You can obtain the
 GPG public key of the Mandriva Security Team by executing:

  gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

 You can view other update advisories for Mandriva Linux at:

  http://www.mandriva.com/en/support/security/advisories/

 If you want to report vulnerabilities, please contact

  security_(at)_mandriva.com
 _______________________________________________________________________

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Mandriva Security Team
  <security*mandriva.com>
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