CVE-2016-6308

MEDIUM

OpenSSL 1.1.0 - Denial of Service via DTLS Message Length Check Bypass

Title source: llm

Description

statem/statem_dtls.c in the DTLS implementation in OpenSSL 1.1.0 before 1.1.0a allocates memory before checking for an excessive length, which might allow remote attackers to cause a denial of service (memory consumption) via crafted DTLS messages.

References (16)

Core 16

Core References

Third Party Advisory, VDB Entry vdb-entry

http://www.securityfocus.com/bid/93151

Third Party Advisory, VDB Entry vdb-entry

http://www.securitytracker.com/id/1036885

Vendor Advisory

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

Vendor Advisory

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

Vendor Advisory

https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=df6b5e29ffea2d5a3e08de92fb765fdb21c7a21e

Vendor Advisory

https://www.openssl.org/news/secadv/20160922.txt

Various Sources

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

Various Sources

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

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/cpuoct2016-2881722.html

Vendor Advisory

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

Third Party Advisory

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

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 5.9

EPSS 0.1937

EPSS Percentile 95.5%

Attack Vector NETWORK

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

Details

CWE

CWE-399

Status published

Products (1)

openssl/openssl 1.1.0

Published Sep 26, 2016

Tracked Since Feb 18, 2026