CVE-2016-6303

CRITICAL

OpenSSL <1.1.0 - DoS

Title source: llm

Description

Integer overflow in the MDC2_Update function in crypto/mdc2/mdc2dgst.c in OpenSSL before 1.1.0 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly have unspecified other impact via unknown vectors.

References (19)

[Third Party Advisory] http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

[Third Party Advisory] http://www-01.ibm.com/support/docview.wss?uid=swg21995039

[Patch, Third Party Advisory] http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html

[Patch, Third Party Advisory] http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

[Patch, Third Party Advisory] http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

[Patch, Third Party Advisory] http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html

[Patch, Third Party Advisory] http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/92984

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1036885

[Third Party Advisory] https://bto.bluecoat.com/security-advisory/sa132

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1370146

[Vendor Advisory] https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

[Vendor Advisory] https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=55d83bf7c10c7b205fffa23fa7c3977491e56c07

[Third Party Advisory] https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312

[Third Party Advisory] https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/

[Third Party Advisory] https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc

[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 9.8

EPSS 0.2855

EPSS Percentile 96.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-787

Status draft

Affected Products (31)

nodejs/node.js < 0.12.16

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

... and 16 more

Timeline

Published Sep 16, 2016

Tracked Since Feb 18, 2026