CVE-2024-36918

low-risk
Published 2024-05-30

In the Linux kernel, the following vulnerability has been resolved: bpf: Check bloom filter map value size This patch adds a missing check to bloom filter creating, rejecting values above KMALLOC_MAX_SIZE. This brings the bloom map in line with many other map types. The lack of this protection can cause kernel crashes for value sizes that overflow int's. Such a crash was caught by syzkaller. The next patch adds more guard-rails at a lower level.

Do I need to act?

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0.02% 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 (2)

Affected Vendors

Linux

References (8)

Patch https://git.kernel.org/stable/c/608e13706c8b6c658a0646f09ebced74ec367f7c
Patch https://git.kernel.org/stable/c/a8d89feba7e54e691ca7c4efc2a6264fa83f3687
Patch https://git.kernel.org/stable/c/c418afb9bf23e2f2b76cb819601e4a5d9dbab42d
Patch https://git.kernel.org/stable/c/fa6995eeb62e74b5a1480c73fb7b420c270784d3
Patch https://git.kernel.org/stable/c/608e13706c8b6c658a0646f09ebced74ec367f7c
Patch https://git.kernel.org/stable/c/a8d89feba7e54e691ca7c4efc2a6264fa83f3687
Patch https://git.kernel.org/stable/c/c418afb9bf23e2f2b76cb819601e4a5d9dbab42d
Patch https://git.kernel.org/stable/c/fa6995eeb62e74b5a1480c73fb7b420c270784d3
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low