The TLS implementation in Mozilla Network Security Services (NSS) 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://nvd.nist.gov/vuln/detail/CVE-2013-1620
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
• http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00009.html
• http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00010.html
• http://openwall.com/lists/oss-security/2013/02/05/24
• http://rhn.redhat.com/errata/RHSA-2013-1135.html
• http://rhn.redhat.com/errata/RHSA-2013-1144.html
• http://seclists.org/fulldisclosure/2014/Dec/23
• http://security.gentoo.org/glsa/glsa-201406-19.xml
• http://www.isg.rhul.ac.uk/tls/TLStiming.pdf
• http://www.oracle.com/technetwork/topics/security/cpuapr2014-1972952.html
• http://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html
• http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
• http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.securityfocus.com/archive/1/534161/100/0/threaded
• http://www.securityfocus.com/bid/57777
• http://www.securityfocus.com/bid/64758
• http://www.ubuntu.com/usn/USN-1763-1
• http://www.vmware.com/security/advisories/VMSA-2014-0012.html