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CVE-2021-21235

5.7 · MEDIUM

kamadak-exif is an exif parsing library written in pure Rust.

Published Jan 6, 2021CWE-400EPSS 1.53%

Overview

CVE-2021-21235 is a medium-severity vulnerability. It was published on January 6, 2021 and has a CVSS 3.1 base score of 5.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

kamadak-exif is an exif parsing library written in pure Rust. In kamadak-exif version 0.5.2, there is an infinite loop in parsing crafted PNG files. Specifically, reader::read_from_container can cause an infinite loop when a crafted PNG file is given. This is fixed in version 0.5.3. No workaround is available. Applications that do not pass files with the PNG signature to Reader::read_from_container are not affected.

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

Refcrates.io/crates/kamadak-exifGitHubgithub.com/kamadak/exif-rs/commit/f21df24616ea611c5d5d0e0e2f8042eb74d5ff48GitHubgithub.com/kamadak/exif-rs/security/advisories/GHSA-px9g-8hgv-jvg2Refcrates.io/crates/kamadak-exifGitHubgithub.com/kamadak/exif-rs/commit/f21df24616ea611c5d5d0e0e2f8042eb74d5ff48GitHubgithub.com/kamadak/exif-rs/security/advisories/GHSA-px9g-8hgv-jvg2

How CyberStrike helps

Frequently asked questions

What is CVE-2021-21235?

CVE-2021-21235 is a medium-severity vulnerability. It was published on January 6, 2021 and has a CVSS 3.1 base score of 5.7 (MEDIUM).

How severe is CVE-2021-21235?

This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-21235?

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-2021-21235?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-21235 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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