CVE-2021-33656 | BDVDB-2026-180342 Detail
openEuler:kernel
Description#
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
Impact#
No impact statement in the source data.
Weaknesses#
- CWE-787 Out-of-bounds Write
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
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.