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Vulnerability Details CVE-2021-29155

An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 46.9%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 2.1
References
Products affected by CVE-2021-29155


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