CVEvulnerability
CVE-2021-33656
6.8 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-07-18
- Last modified
- 2026-10-08
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.8 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787
Description
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
Affected configurations
• openatom openeuler 20.03
• linux linux kernel (< 5.10.127)
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- http://www.openwall.com/lists/oss-security/2022/07/19/3 Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernel Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/07/19/3 Mailing List, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernel Third Party Advisory