In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-…

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2021-33624 · Microsoft / collected KEV context

cve-program · CVE-2021-33624

• https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner
• http://www.openwall.com/lists/oss-security/2021/06/21/1
• https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b49db
• https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
• https://github.com/benschlueter/CVE-2021-33624

No related operational record is retained in the current change model.