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CVE-2023-46837

3.3 · LOW

Arm provides multiple helpers to clean & invalidate the cache for a given region.

Published Jan 5, 2024CWE-119EPSS 0.24%

Overview

CVE-2023-46837 is a low-severity vulnerability. It was published on January 5, 2024 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Arm provides multiple helpers to clean & invalidate the cache

for a given region. This is, for instance, used when allocating

guest memory to ensure any writes (such as the ones during scrubbing)

have reached memory before handing over the page to a guest.

Unfortunately, the arithmetics in the helpers can overflow and would

then result to skip the cache cleaning/invalidation. Therefore there

is no guarantee when all the writes will reach the memory.

This undefined behavior was meant to be addressed by XSA-437, but the

approach was not sufficient.

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.fedoraproject.org/archives/list/[email protected]/message/JFVKWYQFRUU3CAS53THTUKXEOUDWI42G/Reflists.fedoraproject.org/archives/list/[email protected]/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/Refxenbits.xenproject.org/xsa/advisory-447.htmlRefxenbits.xen.org/xsa/advisory-447.htmlReflists.fedoraproject.org/archives/list/[email protected]/message/JFVKWYQFRUU3CAS53THTUKXEOUDWI42G/Reflists.fedoraproject.org/archives/list/[email protected]/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/Refxenbits.xenproject.org/xsa/advisory-447.html

How CyberStrike helps

Frequently asked questions

What is CVE-2023-46837?

CVE-2023-46837 is a low-severity vulnerability. It was published on January 5, 2024 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2023-46837?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-46837?

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-2023-46837?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-46837 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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