{"cve":"CVE-2013-1620","nvd":{"published":"2013-02-08T19:55:01.203","modified":"2026-06-16T23:51:47.547","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-203"],"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"],"products":["canonical:ubuntu_linux","mozilla:network_security_services","oracle:enterprise_manager_ops_center","oracle:glassfish_communications_server","oracle:glassfish_server","oracle:iplanet_web_proxy_server","oracle:iplanet_web_server","oracle:opensso","oracle:traffic_director","oracle:vm_server","redhat:enterprise_linux_desktop","redhat:enterprise_linux_eus","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_workstation"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2013-1620","score":0.03723,"percentile":0.89801,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}