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prionPRIOn knowledge basePRION:CVE-2021-33624
HistoryJun 23, 2021 - 4:15 p.m.

Type confusion

2021-06-2316:15:00
PRIOn knowledge base
www.prio-n.com
10

5.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

24.3%

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-9183671af6db.

CPENameOperatorVersion
debian_linuxeq9.0
linux_kernellt5.12.13