CVE-2021-33656 — Out-of-bounds Write in Kernel
Severity
6.8MEDIUMNVD
OSV6.7OSV5.5
EPSS
0.0%
top 91.53%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 18
Latest updateSep 30
Description
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 0.9 | Impact: 5.9
Affected Packages6 packages
Also affects: Debian Linux 10.0