CVE-2021-33655
MEDIUMLinux Kernel < 5.19 - Out-of-bounds Write via FBIOPUT_VSCREENINFO ioctl
Title source: llmDescription
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
References (4)
Core 4
Core References
Mailing List, Patch, Vendor Advisory x_refsource_misc
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2022/07/19/2
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2022/dsa-5191
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
Scores
CVSS v3
6.7
EPSS
0.0031
EPSS Percentile
22.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (4)
debian/debian_linux
10.0
debian/debian_linux
11.0
linux/linux_kernel
5.19 rc1 (5 CPE variants)
linux/linux_kernel
< 5.19
Published
Jul 18, 2022
Tracked Since
Feb 18, 2026