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CVE-2024-53173

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: NFSv4.0: Fix a use-after-free problem in the asynchronous open() Yang Erkun reports that when two threads are opening files at…

Published Dec 27, 2024CWE-416EPSS 0.27%

Overview

CVE-2024-53173 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

NFSv4.0: Fix a use-after-free problem in the asynchronous open()

Yang Erkun reports that when two threads are opening files at the same

time, and are forced to abort before a reply is seen, then the call to

nfs_release_seqid() in nfs4_opendata_free() can result in a

use-after-free of the pointer to the defunct rpc task of the other

thread.

The fix is to ensure that if the RPC call is aborted before the call to

nfs_wait_on_sequence() is complete, then we must call nfs_release_seqid()

in nfs4_open_release() before the rpc_task is freed.

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/1cfae9575296f5040cdc84b0730e79078c081d2dRefgit.kernel.org/stable/c/229a30ed42bb87bcb044c5523fabd9e4f0e75648Refgit.kernel.org/stable/c/2ab9639f16b05d948066a6c4cf19a0fdc61046ffRefgit.kernel.org/stable/c/2fdb05dc0931250574f0cb0ebeb5ed8e20f4a889Refgit.kernel.org/stable/c/5237a297ffd374a1c4157a53543b7a69d7bbbc03Refgit.kernel.org/stable/c/7bf6bf130af8ee7d93a99c28a7512df3017ec759Refgit.kernel.org/stable/c/b56ae8e715557b4fc227c9381d2e681ffafe7b15Refgit.kernel.org/stable/c/ba6e6c04f60fe52d91520ac4d749d372d4c74521Refgit.kernel.org/stable/c/e2277a1d9d5cd0d625a4fd7c04fce2b53e66df77Reflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-53173?

CVE-2024-53173 is a high-severity vulnerability. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-53173?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-53173?

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-2024-53173?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-53173 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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