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CVE-2023-46049

5.3 · MEDIUM

LLVM 15.0.0 has a NULL pointer dereference in the parseOneMetadata() function via a crafted pdflatex.fmt file (or perhaps a crafted .o file) to llvm-lto.

Published Mar 27, 2024CWE-476EPSS 0.68%

Overview

CVE-2023-46049 is a medium-severity vulnerability. It was published on March 27, 2024 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

LLVM 15.0.0 has a NULL pointer dereference in the parseOneMetadata() function via a crafted pdflatex.fmt file (or perhaps a crafted .o file) to llvm-lto. NOTE: this is disputed because the relationship between pdflatex.fmt and any LLVM language front end is not explained, and because a crash of the llvm-lto application should be categorized as a usability problem.

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

Refseclists.org/fulldisclosure/2024/Jan/66GitHubgithub.com/llvm/llvm-project/issues/67388Refllvm.org/docs/Security.htmlRefpacketstormsecurity.com/files/176820/llvm-LLVM-15-Null-Pointer.htmlRefseclists.org/fulldisclosure/2024/Jan/66GitHubgithub.com/llvm/llvm-project/issues/67388Refllvm.org/docs/Security.html

How CyberStrike helps

Frequently asked questions

What is CVE-2023-46049?

CVE-2023-46049 is a medium-severity vulnerability. It was published on March 27, 2024 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-46049?

This vulnerability has a CVSS 3.1 base score of 5.3, 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-2023-46049?

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-2023-46049?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-46049 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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