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CVE-2021-40145

7.5 · HIGH

gdImageGd2Ptr in gd_gd2.c in the GD Graphics Library (aka LibGD) through 2.3.2 has a double free.

Published Aug 26, 2021CWE-415EPSS 2.13%

Overview

CVE-2021-40145 is a high-severity vulnerability. It was published on August 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

gdImageGd2Ptr in gd_gd2.c in the GD Graphics Library (aka LibGD) through 2.3.2 has a double free. NOTE: the vendor's position is "The GD2 image format is a proprietary image format of libgd. It has to be regarded as being obsolete, and should only be used for development and testing purposes.

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

GitHubgithub.com/libgd/libgd/commit/c5fd25ce0e48fd5618a972ca9f5e28d6d62006afGitHubgithub.com/libgd/libgd/issues/700GitHubgithub.com/libgd/libgd/pull/713GitHubgithub.com/libgd/libgd/commit/c5fd25ce0e48fd5618a972ca9f5e28d6d62006afGitHubgithub.com/libgd/libgd/issues/700GitHubgithub.com/libgd/libgd/pull/713

How CyberStrike helps

Frequently asked questions

What is CVE-2021-40145?

CVE-2021-40145 is a high-severity vulnerability. It was published on August 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-40145?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-40145?

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-2021-40145?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-40145 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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