What’s Vulnerable › Vulnerabilities
CVE-2013-1620
- Severity: medium (CVSS 4.3 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2013-02-08 · updated 2026-06-16
- Weakness: CWE-203
Description
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.
Affected products
- Canonical Ubuntu Linux: 10.04, 11.10, 12.04, 12.10
- Mozilla Network Security Services: before 3.14.3 — fixed in 3.14.3
- Oracle Corporation Enterprise Manager Ops Center: 11.1, 12.1, 12.2
- Oracle Glassfish Communications Server: 2.0
- Oracle Corporation GlassFish Server: 2.1.1
- Oracle Iplanet Web Proxy Server: 4.0
- Oracle Corporation iPlanet Web Server: 6.1, 7.0
- Oracle Opensso: 3.0-03
- Oracle Traffic Director: 11.1.1.6.0, 11.1.1.7.0
- Oracle Vm Server: 3.2
- RedHat Enterprise Linux Desktop: 5.0, 6.0
- RedHat Enterprise Linux Eus: 5.9
- RedHat Enterprise Linux Server: 5.0, 6.0
- RedHat Enterprise Linux Server Aus: 5.9
- RedHat Enterprise Linux Workstation: 5.0, 6.0
How to fix
Upgrade to a fixed version: Mozilla Network Security Services 3.14.3. Check the vendor advisory for mitigations.
References
- 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
Get alerted when CVE-2013-1620 or the next vulnerability affects your stack