CVE-2021-22556
Integer Overflow in Fuchsia Kernel
- State
- Published
- Severity
- 5.3 Medium
- Published
- May 3, 2022
- Updated
- Apr 21, 2025
- Reserved
- Jan 5, 2021
Description
The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don’t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
Weaknesses
- CWE-190 Integer Overflow or Wraparound
Affected Products
| Product | Versions |
|---|---|
Fuchsia KernelGoogle LLC |
|
References
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