CVE-2016-2181

7.5 HIGH
Published: September 16, 2016 Modified: May 06, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
Source: secalert@redhat.com
Third Party Advisory
http://www-01.ibm.com/support/docview.wss?uid=swg21995039
Source: secalert@redhat.com
Third Party Advisory
http://www.securityfocus.com/bid/92982
Source: secalert@redhat.com
Third Party Advisory VDB Entry
http://www.splunk.com/view/SP-CAAAPSV
Source: secalert@redhat.com
Third Party Advisory
http://www.splunk.com/view/SP-CAAAPUE
Source: secalert@redhat.com
Third Party Advisory
http://www.ubuntu.com/usn/USN-3087-1
Source: secalert@redhat.com
http://www.ubuntu.com/usn/USN-3087-2
Source: secalert@redhat.com
https://bto.bluecoat.com/security-advisory/sa132
Source: secalert@redhat.com
Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
Source: secalert@redhat.com
Third Party Advisory
https://www.tenable.com/security/tns-2016-16
Source: secalert@redhat.com
Third Party Advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1940.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://seclists.org/fulldisclosure/2017/Jul/31
Source: af854a3a-2127-422b-91ae-364da2661108
http://www-01.ibm.com/support/docview.wss?uid=swg21995039
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.debian.org/security/2016/dsa-3673
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.securityfocus.com/bid/92982
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036690
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.splunk.com/view/SP-CAAAPSV
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.splunk.com/view/SP-CAAAPUE
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.ubuntu.com/usn/USN-3087-1
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-3087-2
Source: af854a3a-2127-422b-91ae-364da2661108
https://bto.bluecoat.com/security-advisory/sa132
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10215
Source: af854a3a-2127-422b-91ae-364da2661108
https://support.f5.com/csp/article/K59298921
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.tenable.com/security/tns-2016-16
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.tenable.com/security/tns-2016-20
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.tenable.com/security/tns-2016-21
Source: af854a3a-2127-422b-91ae-364da2661108

82 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
22.6%
97th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

openssl oracle