CVE-2021-31829
- State
- Published
- Severity
- Not scored
- Published
- May 6, 2021
- Updated
- Aug 3, 2024
- Reserved
- Apr 27, 2021
Description
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- [oss-security] 20210504 [CVE-2021-31829] Linux kernel protection of stack pointer against speculative pointer arithmetic can be bypassed to leak content of kernel memorymailing-list
- https://github.com/torvalds/linux/commit/801c6058d14a82179a7ee17a4b532cac6fad067f
- FEDORA-2021-9c0276e935vendor-advisory
- FEDORA-2021-5ad5249c43vendor-advisory
- FEDORA-2021-7c085ca697vendor-advisory
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security updatemailing-list
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