{"id":"CVE-2016-2181","details":"The Anti-Replay feature in the DTLS implementation in OpenSSL before 1.1.0 mishandles early use of a new epoch number in conjunction with a large sequence number, which allows remote attackers to cause a denial of service (false-positive packet drops) via spoofed DTLS records, related to rec_layer_d1.c and ssl3_record.c.","modified":"2026-04-11T16:22:55.802507Z","published":"2016-09-16T05:59:01.347Z","related":["MGASA-2016-0338","MGASA-2016-0408","SUSE-FU-2022:0445-1","SUSE-SU-2016:2387-1","SUSE-SU-2016:2394-1","SUSE-SU-2016:2458-1","SUSE-SU-2016:2468-1","SUSE-SU-2016:2469-1","SUSE-SU-2017:2699-1","SUSE-SU-2017:2700-1","openSUSE-SU-2024:10271-1","openSUSE-SU-2024:11127-1"],"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html"},{"type":"WEB","url":"http://seclists.org/fulldisclosure/2017/Jul/31"},{"type":"WEB","url":"http://www.securitytracker.com/id/1036690"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"},{"type":"WEB","url":"https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=1fb9fdc3027b27d8eb6a1e6a846435b070980770"},{"type":"WEB","url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10215"},{"type":"WEB","url":"https://support.f5.com/csp/article/K59298921"},{"type":"WEB","url":"https://www.tenable.com/security/tns-2016-20"},{"type":"WEB","url":"https://www.tenable.com/security/tns-2016-21"},{"type":"ADVISORY","url":"http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2016-1940.html"},{"type":"ADVISORY","url":"http://www-01.ibm.com/support/docview.wss?uid=swg21995039"},{"type":"ADVISORY","url":"http://www.debian.org/security/2016/dsa-3673"},{"type":"ADVISORY","url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/92982"},{"type":"ADVISORY","url":"http://www.splunk.com/view/SP-CAAAPSV"},{"type":"ADVISORY","url":"http://www.splunk.com/view/SP-CAAAPUE"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-3087-1"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-3087-2"},{"type":"ADVISORY","url":"https://bto.bluecoat.com/security-advisory/sa132"},{"type":"ADVISORY","url":"https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312"},{"type":"ADVISORY","url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc"},{"type":"ADVISORY","url":"https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24"},{"type":"ADVISORY","url":"https://www.tenable.com/security/tns-2016-16"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openssl/openssl","events":[{"introduced":"0"},{"last_affected":"888759a1d38197f29de7227876c3b58fbff8549f"},{"last_affected":"e818b74be2170fbe957a07b0da4401c2b694b3b8"},{"last_affected":"543e15a3c0139e6026ce194f8c8465fb9a559986"},{"last_affected":"fe707c3260cb44f5e7d701cf87e1197712ec7d43"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.0.1"},{"last_affected":"1.0.1a"},{"last_affected":"1.0.1b"},{"last_affected":"1.0.1c"},{"last_affected":"1.0.1d"},{"last_affected":"1.0.1e"},{"last_affected":"1.0.1f"},{"last_affected":"1.0.1g"},{"last_affected":"1.0.1h"},{"last_affected":"1.0.1i"},{"last_affected":"1.0.1j"},{"last_affected":"1.0.1k"},{"last_affected":"1.0.1l"},{"last_affected":"1.0.1m"},{"last_affected":"1.0.1n"},{"last_affected":"1.0.1o"},{"last_affected":"1.0.1p"},{"last_affected":"1.0.1q"},{"last_affected":"1.0.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