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Status published
Medium
CVE-2021-33656
When setting font with malicous data by ioctl cmd PIO_FONT,kernel...
Vulnerability Description
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
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Credits & Attribution
No credits recorded in the NVD database.
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
- http://www.openwall.com/lists/oss-security/2022/07/19/3
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
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Affected Vendor
Affected Software
openEuler:kernel
Vulnerable Versions:
<5.10.127
Timeline
Official Publish:
July 18th, 2022
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H