UBUNTU-CVE-2013-1619

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UBUNTU-CVE-2013-1619

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2013-1619, http://www.isg.rhul.ac.uk/tls/TLStiming.pdf, http://openwall.com/lists/oss-security/2013/02/05/24, https://ubuntu.com/security/notices/USN-1752-1, http://nmav.gnutls.org/2013/02/time-is-money-for-cbc-ciphersuites.html, https://www.cve.org/CVERecord?id=CVE-2013-1619