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CVE-2016-2191

6.5 · MEDIUM

The bmp_read_rows function in pngxtern/pngxrbmp.c in OptiPNG before 0.7.6 allows remote attackers to cause a denial of service (invalid memory write and crash) via a series of delta escapes in a cr…

Published Apr 13, 2016CWE-119EPSS 3.52%

Overview

CVE-2016-2191 is a medium-severity vulnerability. It was published on April 13, 2016 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The bmp_read_rows function in pngxtern/pngxrbmp.c in OptiPNG before 0.7.6 allows remote attackers to cause a denial of service (invalid memory write and crash) via a series of delta escapes in a crafted BMP image.

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

Reflists.opensuse.org/opensuse-updates/2016-04/msg00061.htmlReflists.opensuse.org/opensuse-updates/2016-04/msg00065.htmlRefpacketstormsecurity.com/files/136553/Optipng-Invalid-Write.htmlRefseclists.org/fulldisclosure/2016/Apr/15Refwww.debian.org/security/2016/dsa-3546Refwww.openwall.com/lists/oss-security/2016/04/04/2Refwww.securityfocus.com/archive/1/537972/100/0/threadedRefwww.ubuntu.com/usn/USN-2951-1Refsecurity.gentoo.org/glsa/201608-01Refsourceforge.net/p/optipng/bugs/59/

How CyberStrike helps

Frequently asked questions

What is CVE-2016-2191?

CVE-2016-2191 is a medium-severity vulnerability. It was published on April 13, 2016 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

How severe is CVE-2016-2191?

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2016-2191?

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-2016-2191?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-2191 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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