CVE-2023-3161 Information

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.

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=2213485 https://github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0be