CVE-2024-36918
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.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/608e13706c8b6c658a0646f09ebced74ec367f7cPatch
- https://git.kernel.org/stable/c/a8d89feba7e54e691ca7c4efc2a6264fa83f3687Patch
- https://git.kernel.org/stable/c/c418afb9bf23e2f2b76cb819601e4a5d9dbab42dPatch
- https://git.kernel.org/stable/c/fa6995eeb62e74b5a1480c73fb7b420c270784d3Patch
- https://git.kernel.org/stable/c/608e13706c8b6c658a0646f09ebced74ec367f7cPatch
- https://git.kernel.org/stable/c/a8d89feba7e54e691ca7c4efc2a6264fa83f3687Patch
- https://git.kernel.org/stable/c/c418afb9bf23e2f2b76cb819601e4a5d9dbab42dPatch
- https://git.kernel.org/stable/c/fa6995eeb62e74b5a1480c73fb7b420c270784d3Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.