VulnerabilityModified
CVE-2023-3161
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.
MEDIUM 5.5EPSS 0.21%
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1335, CWE-682
- Affected
- linux/linux kernel · fedoraproject/fedora · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2213485Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0bePatch
- https://bugzilla.redhat.com/show_bug.cgi?id=2213485Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0bePatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.