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CVE-2016-2179

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.

POC

Reference

- 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/ovmbulletinoct2016-3090547.html

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

- https://git.openssl.org/?p=openssl.git;a=commit;h=f5c7f5dfbaf0d2f7d946d0fe86f08e6bcb36ed0d

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

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

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/Samaritin/OSINT

- https://github.com/akaganeite/CVE4PP

- https://github.com/chnzzh/OpenSSL-CVE-lib

- https://github.com/tomwillfixit/alpine-cvecheck