CVE-2023-3161

Medium

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.

SeverityMedium
CVSS5.5
Exploit probability—
ProductLinux Kernel
PublishedJun 12, 2023
First seenJun 12, 2023
Weakness typeCWE-1335CWE-1335

How to fix

Update
  • linux linux_kernel6.2 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernelv < 6.2, 6.26.2
fedoraproject fedora38—
redhat enterprise_linux8.0, 9.0—

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CVE-2023-3161 · Linux Kernel · Dark Radar