Tracker / CVE-2020-27171
CVE-2020-27171
Medium 6.0
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.
Affected products and versions
| canonical | ubuntu_linux |
|---|---|
| debian | debian_linux |
| fedoraproject | fedora |
| linux | linux_kernel · … → 5.11.8 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.