Out-of-Bounds Speculation Vulnerability in Linux Kernel's BPF Verifier

CVE-2019-7308 · MEDIUM Severity

AV:L/AC:M/AU:N/C:C/I:N/A:N

kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.

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