CVE-2021-33656
- State
- Published
- Severity
- Not scored
- Published
- Jul 18, 2022
- Updated
- Oct 8, 2026
- Reserved
- May 28, 2021
Description
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
Scores
The record has no CVSS score.
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
openEuler:kerneln/a |
|
References
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch
- https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernel
- [oss-security] 20220719 CVE-2021-33656: Linux kernel: When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.(<5.10.127)mailing-list
- [debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security updatemailing-list
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