{"id":"CVE-2013-1623","aliases":["DSA-2780-1","EUVD-2013-1658","GHSA-5g8p-qpcj-85w5"],"status":"published","title":"The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing...","description":"The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do 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.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02424,"percentile":0.84302,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-310"],"published":"2013-02-08T19:00:00Z","modified":"2026-06-16T23:51:47Z","affected":[{"source":"osv","ecosystem":"Debian:6.0","package":"mysql-5.1","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.72-2"}]}],"versions":["5.1.49-3","5.1.50-1","5.1.51-1","5.1.53-1","5.1.54-1","5.1.54-2","5.1.55-1","5.1.56-1","5.1.57-1","5.1.57-1.1","5.1.57-1.2","5.1.57-1.3","5.1.57-2","5.1.57-3","5.1.57-3.1","5.1.58-1","5.1.61-0+squeeze1","5.1.61-2","5.1.61-3","5.1.62-1","5.1.62-1+m68k","5.1.63-0+squeeze1","5.1.66-0+squeeze1"],"bundled":32}],"products":[{"vendor":"yassl","product":"cyassl"}],"references":[{"url":"http://www.isg.rhul.ac.uk/tls/TLStiming.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://openwall.com/lists/oss-security/2013/02/05/24","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://secunia.com/advisories/53372","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://security.gentoo.org/glsa/glsa-201308-06.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"http://www.yassl.com/yaSSL/Blog/Entries/2013/2/5_WolfSSL%2C_provider_of_CyaSSL_Embedded_SSL%2C_releases_first_embedded_TLS_and_DTLS_protocol_fix_for_Lucky_Thirteen_Attack.html","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-1623"},{"url":"https://github.com/advisories/GHSA-5g8p-qpcj-85w5"}],"sources":{"cve":[{"id":"CVE-2013-1623","description":"The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do 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.","status":"published","published":"2013-02-08T19:00:00Z","modified":"2024-08-06T15:04:49.361Z","updated_at":"2026-11-02T14:34:58.534075Z"}],"euvd":[{"id":"EUVD-2013-1658","description":"The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do 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.","status":"published","published":"2013-02-08T19:00:00Z","modified":"2024-08-06T15:04:49Z","updated_at":"2026-11-03T01:56:41.572158Z"}],"ghsa":[{"id":"GHSA-5g8p-qpcj-85w5","title":"The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing...","description":"The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do 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.","status":"published","published":"2022-05-17T04:52:26Z","modified":"2023-01-28T05:02:42Z","updated_at":"2026-11-02T14:43:49.735086Z"}],"nvd":[{"id":"CVE-2013-1623","description":"The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do 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.","status":"published","published":"2013-02-08T19:55:01.407Z","modified":"2026-06-16T23:51:47.867Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:02:21.222658Z"}],"osv":[{"id":"DSA-2780-1","title":"mysql-5.1 - several","status":"published","published":"2013-10-18T00:00:00Z","modified":"2026-03-09T01:20:17.858981Z","updated_at":"2026-11-02T15:46:15.489951Z"}]}}