CVE-2023-3161 is a denial-of-service vulnerability in the Linux Kernel's Framebuffer Console (fbcon), affecting various Fedora and Red Hat Enterprise Linux distributions. The flaw arises from a lack of input validation when setting font dimensions, leading to a shift-out-of-bounds error. With a CVSS score of 5.5 (Medium), this vulnerability can be exploited locally with low attack complexity, potentially causing system instability. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:* | ||
6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:* | ||
6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:* | ||
6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font since there are no checks in place a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.
Jun 13, 2023kernel: fbcon: shift-out-of-bounds in fbcon_set_font()
Jan 25, 2023