PT-2016-3417 · Openssl+11 · Openssl+14

Published 2016-09-16 · Updated 2024-06-15 · CVE-2016-2179

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

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

Description The issue is related to the DTLS implementation in OpenSSL, which does not properly restrict the lifetime of queue entries associated with unused out-of-order messages. This allows remote attackers to cause a denial of service by maintaining many crafted DTLS sessions simultaneously. The problem is associated with errors in resource management.

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 the number of simultaneous DTLS sessions to minimize the risk of exploitation.

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

ALT-PU-2016-2005

BDU:2022-02557

CESA-2016_1940

CVE-2016-2179

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

RHSA-2016:1940

RHSA-2016_1940

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-2017:2699-1

SUSE-SU-2017:2700-1

USN-3087-1

USN-3087-2

Affected Products

Alt Linux

Centos

Cisco Asa

Cisco Ios Xe

Cisco Nexus

Cisco Wls

Fortios

Freebsd

Huawei Vrp

Ibm Aix

Nessus

Openssl

Red Hat

Suse

Ubuntu

References · 317

• https://nvd.nist.gov/vuln/detail/CVE-2016-2179 · Security Note
• https://ubuntu.com/security/CVE-2016-6306 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2179 · 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
• http://rhn.redhat.com/errata/RHSA-2016-1940.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02907 · Security Note