PT-2016-3289 · Openssl+9 · Openssl+9

Adam Mariš · Published 2016-08-11 · Updated 2024-06-15 · CVE-2016-6303

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenSSL versions prior to 1.1.0

Description The issue is caused by an integer overflow in the MDC2 Update function in crypto/mdc2/mdc2dgst.c, allowing remote attackers to cause a denial of service, which may include an out-of-bounds write and application crash, or possibly have other unspecified impacts via unknown vectors.

Recommendations For versions prior to 1.1.0, update to version 1.1.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the MDC2 Update function in crypto/mdc2/mdc2dgst.c until a patch is available.

Fix

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALT-PU-2016-2005

ALT-PU-2016-2068

BDU:2019-01912

CVE-2016-6303

DLA-637-1

DSA-3673-1

MGASA-2016-0338

MGASA-2016-0408

OPENSUSE-SU-2016_2391-1

OPENSUSE-SU-2016_2407-1

OPENSUSE-SU-2016_2537-1

OPENSUSE-SU-2018_0458-1

OPENSUSE-SU-2024:10271-1

OPENSUSE-SU-2024:11127-1

SUSE-FU-2022:0445-1

SUSE-SU-2016:2387-1

SUSE-SU-2016:2394-1

SUSE-SU-2016:2458-1

SUSE-SU-2016:2468-1

SUSE-SU-2016:2469-1

SUSE-SU-2016:2545-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

USN-3087-1

USN-3087-2

Affected Products

Alt Linux

Fortios

Freebsd

Huawei Vrp

Ibm Aix

Junos

Nessus

Openssl

Suse

Ubuntu

References · 297

• http://oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html · Patch
• https://ubuntu.com/security/CVE-2016-6306 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2179 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-6303 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5325 · Security Note
• https://ubuntu.com/security/CVE-2016-2181 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2182 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02405 · Security Note
• https://security.freebsd.org/advisories/FreeBSD-SA-16:26.openssl.asc · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02462 · Security Note
• https://bdu.fstec.ru/vul/2016-02168 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2180 · Security Note
• https://bdu.fstec.ru/vul/2020-02910 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2016:2468-1 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2016-0408 · Vendor Advisory