CVE-2016-2179 Information
Share on:Description
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.
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Reference
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://rhn.redhat.com/errata/RHSA-2016-1940.html http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html http://www.securityfocus.com/bid/92987 http://www.securitytracker.com/id/1036689 http://www.splunk.com/view/SP-CAAAPSV http://www.splunk.com/view/SP-CAAAPUE http://www-01.ibm.com/support/docview.wss?uid=swg21995039 https://bto.bluecoat.com/security-advisory/sa132 https://git.openssl.org/?p=openssl.git;a=commit;h=f5c7f5dfbaf0d2f7d946d0fe86f08e6bcb36ed0d https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312 https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us https://www.openssl.org/news/vulnerabilities.htmly2017 https://www.tenable.com/security/tns-2016-16 https://www.tenable.com/security/tns-2016-20 https://www.tenable.com/security/tns-2016-21
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
NONE
Availability Impact
NONE
Base Score
HIGH
Base Severity
7.5