CVE-2021-33656 describes an out-of-bounds write vulnerability in the Linux kernel, specifically when handling font data via the ioctl PIO_FONT command. This flaw impacts various Linux distributions, including Debian and openEuler. With a CVSS score of 6.8 (Medium), it presents a high impact on confidentiality, integrity, and availability, requiring physical access for exploitation. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
20.03CPE matchmatch criteria | cpe:2.3:o:openatom:openeuler:20.03:-:*:*:lts:*:*:* | ||
20.03CPE matchmatch criteria | cpe:2.3:o:openatom:openeuler:20.03:sp1:*:*:lts:*:*:* | ||
20.03CPE matchmatch criteria | cpe:2.3:o:openatom:openeuler:20.03:sp3:*:*:lts:*:*:* | ||
< 5.10.127CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.