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CVE-2016-2177

9.8 · CRITICAL

OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash)…

Published Jun 20, 2016CWE-190EPSS 44.51%

Overview

CVE-2016-2177 is a critical-severity vulnerability. It was published on June 20, 2016 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refkb.juniper.net/InfoCenter/index?page=content&id=JSA10759Reflists.opensuse.org/opensuse-security-announce/2016-09/msg00022.htmlReflists.opensuse.org/opensuse-security-announce/2016-09/msg00023.htmlReflists.opensuse.org/opensuse-security-announce/2016-09/msg00024.htmlReflists.opensuse.org/opensuse-security-announce/2016-09/msg00031.htmlReflists.opensuse.org/opensuse-security-announce/2016-10/msg00005.htmlReflists.opensuse.org/opensuse-security-announce/2016-10/msg00011.htmlReflists.opensuse.org/opensuse-security-announce/2016-10/msg00012.htmlReflists.opensuse.org/opensuse-security-announce/2016-10/msg00029.htmlReflists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html

How CyberStrike helps

Frequently asked questions

What is CVE-2016-2177?

CVE-2016-2177 is a critical-severity vulnerability. It was published on June 20, 2016 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

How severe is CVE-2016-2177?

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2016-2177?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2016-2177?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-2177 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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