CVE-2016-2181

HIGH

OpenSSL - Denial of Service via DTLS Anti-Replay Feature

Title source: llm

Description

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.

References (41)

Core 41

Core References

Vendor Advisory vendor-advisory

http://rhn.redhat.com/errata/RHSA-2016-1940.html

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html

Mailing List mailing-list

http://seclists.org/fulldisclosure/2017/Jul/31

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html

Third Party Advisory vendor-advisory

http://www.debian.org/security/2016/dsa-3673

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html

Vendor Advisory

https://support.f5.com/csp/article/K59298921

Vendor Advisory

https://kc.mcafee.com/corporate/index?page=content&id=SB10215

Third Party Advisory

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

Third Party Advisory

http://www-01.ibm.com/support/docview.wss?uid=swg21995039

Vendor Advisory

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Vendor Advisory

https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=1fb9fdc3027b27d8eb6a1e6a846435b070980770

Various Sources

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en

Third Party Advisory

http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html

Third Party Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

Third Party Advisory

http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

Third Party Advisory

http://www.splunk.com/view/SP-CAAAPSV

Third Party Advisory

http://www.splunk.com/view/SP-CAAAPUE

Third Party Advisory

https://bto.bluecoat.com/security-advisory/sa132

Third Party Advisory

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312

Third Party Advisory

https://www.tenable.com/security/tns-2016-16

Various Sources

https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24

Third Party Advisory, VDB Entry vdb-entry

http://www.securityfocus.com/bid/92982

Third Party Advisory, VDB Entry vdb-entry

http://www.securitytracker.com/id/1036690

Various Sources vendor-advisory

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html

Vendor Advisory vendor-advisory

http://www.ubuntu.com/usn/USN-3087-1

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html

Mailing List vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html

Vendor Advisory vendor-advisory

http://www.ubuntu.com/usn/USN-3087-2

Vendor Advisory

http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html

Vendor Advisory

http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

Vendor Advisory

http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

Vendor Advisory

http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

Third Party Advisory

https://www.tenable.com/security/tns-2016-20

Third Party Advisory

https://www.tenable.com/security/tns-2016-21

Scores

CVSS v3 7.5

EPSS 0.2427

EPSS Percentile 96.2%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-189

Status published

Products (32)

openssl/openssl 1.0.1

openssl/openssl 1.0.1a

openssl/openssl 1.0.1b

openssl/openssl 1.0.1c

openssl/openssl 1.0.1d

openssl/openssl 1.0.1e

openssl/openssl 1.0.1f

openssl/openssl 1.0.1g

openssl/openssl 1.0.1h

openssl/openssl 1.0.1i

... and 22 more

Published Sep 16, 2016

Tracked Since Feb 18, 2026