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CVE-2024-35882

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP Jan Schunk reports that his small NFS servers suffer from memory e…

Published May 19, 2024CWE-401EPSS 0.60%

Overview

CVE-2024-35882 is a high-severity vulnerability. It was published on May 19, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP

Jan Schunk reports that his small NFS servers suffer from memory

exhaustion after just a few days. A bisect shows that commit

e18e157bb5c8 ("SUNRPC: Send RPC message on TCP with a single

sock_sendmsg() call") is the first bad commit.

That commit assumed that sock_sendmsg() releases all the pages in

the underlying bio_vec array, but the reality is that it doesn't.

svc_xprt_release() releases the rqst's response pages, but the

record marker page fragment isn't one of those, so it is never

released.

This is a narrow fix that can be applied to stable kernels. A

more extensive fix is in the works.

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/05258a0a69b3c5d2c003f818702c0a52b6fea861Refgit.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8Refgit.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882Refgit.kernel.org/stable/c/05258a0a69b3c5d2c003f818702c0a52b6fea861Refgit.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8Refgit.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882

How CyberStrike helps

Frequently asked questions

What is CVE-2024-35882?

CVE-2024-35882 is a high-severity vulnerability. It was published on May 19, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-35882?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-35882?

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-2024-35882?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-35882 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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