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prionPRIOn knowledge basePRION:CVE-2020-27171
HistoryMar 20, 2021 - 10:15 p.m.

Integer overflow

2021-03-2022:15:00
PRIOn knowledge base
www.prio-n.com
15

AI Score

5.5

Confidence

High

EPSS

0.001

Percentile

16.0%

An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-10d2bb2e6b1d.