CVE-2024-53217

low-risk
Published 2024-12-27

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent NULL dereference in nfsd4_process_cb_update() @ses is initialized to NULL. If __nfsd4_find_backchannel() finds no available backchannel session, setup_callback_client() will try to dereference @ses and segfault.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (11)

Patch https://git.kernel.org/stable/c/03178cd8f67227015debb700123987fe96275cd1
Patch https://git.kernel.org/stable/c/0c3b0e326f838787d229314d4de83af9c53347e8
Patch https://git.kernel.org/stable/c/1e02c641c3a43c88cecc08402000418e15578d38
Patch https://git.kernel.org/stable/c/4a4ffc1aa9d618e41ad9151f40966e402e58a5a2
Patch https://git.kernel.org/stable/c/752a75811f27300fe8131b0a1efc91960f6f88e7
Patch https://git.kernel.org/stable/c/c5d90f9302742985a5078e42ac38de42c364c44a
Patch https://git.kernel.org/stable/c/cac1405e3ff6685a438e910ad719e0cf06af90ee
Patch https://git.kernel.org/stable/c/d9a0d1f6e15859ea7a86a327f28491e23deaaa62
Patch https://git.kernel.org/stable/c/eb51733ae5fc73d95bd857d5da26f9f65b202a79
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal