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CVE-2024-47737

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: nfsd: call cache_put if xdr_reserve_space returns NULL If not enough buffer space available, but idmap_lookup has triggered loo…

Published Oct 21, 2024CWE-476EPSS 0.28%

Overview

CVE-2024-47737 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

nfsd: call cache_put if xdr_reserve_space returns NULL

If not enough buffer space available, but idmap_lookup has triggered

lookup_fn which calls cache_get and returns successfully. Then we

missed to call cache_put here which pairs with cache_get.

Reviwed-by: Jeff Layton <[email protected]>

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

Refgit.kernel.org/stable/c/3e8081ebff12bec1347deaceb6bce0765cce54dfRefgit.kernel.org/stable/c/81821617312988096f5deccf0f7da6f888e98056Refgit.kernel.org/stable/c/8d0765f86135e27f0bb5c950c136495719b4c834Refgit.kernel.org/stable/c/9803ab882d565a8fb2dde5999d98866d1c499dfdRefgit.kernel.org/stable/c/9f03f0016ff797932551881c7e06ae50e9c39134Refgit.kernel.org/stable/c/a1afbbb5276f943ad7173d0b4c626b8c75a260daRefgit.kernel.org/stable/c/c6b16e700cf4d959af524bd9d3978407ff7ce462Refgit.kernel.org/stable/c/d078cbf5c38de83bc31f83c47dcd2184c04a50c7Refgit.kernel.org/stable/c/e32ee6a61041925d1a05c14d10352dcfce9ef029Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-47737?

CVE-2024-47737 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-47737?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-47737?

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-2024-47737?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-47737 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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