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CVE-2024-31852

5.9 · MEDIUM

LLVM before 18.1.3 generates code in which the LR register can be overwritten without data being saved to the stack, and thus there can sometimes be an exploitable error in the flow of control.

Published Apr 5, 2024EPSS 0.99%

Overview

CVE-2024-31852 is a medium-severity vulnerability. It was published on April 5, 2024 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

LLVM before 18.1.3 generates code in which the LR register can be overwritten without data being saved to the stack, and thus there can sometimes be an exploitable error in the flow of control. This affects the ARM backend and can be demonstrated with Clang. NOTE: the vendor perspective is "we don't have strong objections for a CVE to be created ... It does seem that the likelihood of this miscompile enabling an exploit remains very low, because the miscompile resulting in this JOP gadget is such that the function is most likely to crash on most valid inputs to the function. So, if this function is covered by any testing, the miscompile is most likely to be discovered before the binary is shipped to production."

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

Refbugs.chromium.org/p/llvm/issues/detail?id=69GitHubgithub.com/llvm/llvm-project/issues/80287GitHubgithub.com/llvmbot/llvm-project/commit/0e16af8e4cf3a66ad5d078d52744ae2776f9c4b2Refllvm.org/docs/Security.htmlRefbugs.chromium.org/p/llvm/issues/detail?id=69GitHubgithub.com/llvm/llvm-project/issues/80287GitHubgithub.com/llvmbot/llvm-project/commit/0e16af8e4cf3a66ad5d078d52744ae2776f9c4b2Refllvm.org/docs/Security.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-31852?

CVE-2024-31852 is a medium-severity vulnerability. It was published on April 5, 2024 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2024-31852?

This vulnerability has a CVSS 3.1 base score of 5.9, 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-2024-31852?

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-2024-31852?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-31852 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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