Vulnerability DatabaseCVE-2016-2179
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CVE-2016-2179
Published:September 16, 2016
Updated:May 17, 2026
The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial of service (memory consumption) by maintaining many crafted DTLS sessions simultaneously, related to d1_lib.c, statem_dtls.c, statem_lib.c, and statem_srvr.c.
Affected Packages
openssl (CONDA):
Affected version(s) >=1.0.2d <1.0.2i
Fix Suggestion:
Update to version 1.0.2i
Related Resources (26)
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://bto.bluecoat.com/security-advisory/sa132
http://www.securityfocus.com/bid/92987
http://www.securitytracker.com/id/1036689
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-2179
https://access.redhat.com/security/cve/CVE-2016-2179
http://rhn.redhat.com/errata/RHSA-2016-1940.html
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=f5c7f5dfbaf0d2f7d946d0fe86f08e6bcb36ed0d
https://www.tenable.com/security/tns-2016-21
https://www.tenable.com/security/tns-2016-16
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
http://www.splunk.com/view/SP-CAAAPUE
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc
http://www-01.ibm.com/support/docview.wss?uid=swg21995039
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
https://www.tenable.com/security/tns-2016-20
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
https://security-tracker.debian.org/tracker/CVE-2016-2179
http://www.splunk.com/view/SP-CAAAPSV
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
EPSS
Base Score:
18.31