CVE-2024-53173
CVE-2024-53173 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-51845
- Weakness: CWE-416
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2024-53173?
- 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.
- How severe is CVE-2024-53173?
- CVE-2024-53173 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-53173 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-53173?
- CVE-2024-53173 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-53173?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-53173 have an EU (EUVD) identifier?
- Yes. CVE-2024-53173 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-51845.
- When was CVE-2024-53173 published?
- CVE-2024-53173 was published on 2024-12-27 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/1cfae9575296f5040cdc84b0730e79078c081d2d
- https://git.kernel.org/stable/c/229a30ed42bb87bcb044c5523fabd9e4f0e75648
- https://git.kernel.org/stable/c/2ab9639f16b05d948066a6c4cf19a0fdc61046ff
- https://git.kernel.org/stable/c/2fdb05dc0931250574f0cb0ebeb5ed8e20f4a889
- https://git.kernel.org/stable/c/5237a297ffd374a1c4157a53543b7a69d7bbbc03
- https://git.kernel.org/stable/c/7bf6bf130af8ee7d93a99c28a7512df3017ec759
- https://git.kernel.org/stable/c/b56ae8e715557b4fc227c9381d2e681ffafe7b15
- https://git.kernel.org/stable/c/ba6e6c04f60fe52d91520ac4d749d372d4c74521
- https://git.kernel.org/stable/c/e2277a1d9d5cd0d625a4fd7c04fce2b53e66df77
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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