CVE-2024-38564
In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE bpf_prog_attach uses attach_type_to_prog_type to enforce proper attach type for BPF_PROG_TYPE_CGROUP_SKB.…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE bpf_prog_attach uses attach_type_to_prog_type to enforce proper attach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses bpf_prog_get and relies on bpf_prog_attach_check_attach_type to properly verify prog_type <> attach_type association. Add missing attach_type enforcement for the link_create case. Otherwise, it's currently possible to attach cgroup_skb prog types to other cgroup hooks.
- 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
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/543576ec15b17c0c93301ac8297333c7b6e84ac7Patch
- https://git.kernel.org/stable/c/6675c541f540a29487a802d3135280b69b9f568dPatch
- https://git.kernel.org/stable/c/67929e973f5a347f05fef064fea4ae79e7cdb5fdPatch
- https://git.kernel.org/stable/c/b34bbc76651065a5eafad8ddff1eb8d1f8473172Patch
- https://git.kernel.org/stable/c/543576ec15b17c0c93301ac8297333c7b6e84ac7Patch
- https://git.kernel.org/stable/c/6675c541f540a29487a802d3135280b69b9f568dPatch
- https://git.kernel.org/stable/c/67929e973f5a347f05fef064fea4ae79e7cdb5fdPatch
- https://git.kernel.org/stable/c/b34bbc76651065a5eafad8ddff1eb8d1f8473172Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.