CVE-2021-31829

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-31829
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31829.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-31829
Downstream
Related
Published
2021-05-06T16:15:07Z
Modified
2025-08-09T19:01:28Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.

References

Affected packages