CVE-2024-50180
kernel: fbdev: sisfb: Fix strbuf array overflow
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 8, 2024
Updated · November 21, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
fbdev: sisfb: Fix strbuf array overflow
The values of the variables xres and yres are placed in strbuf. These variables are obtained from strbuf1. The strbuf1 array contains digit characters and a space if the array contains non-digit characters. Then, when executing sprintf(strbuf, "%ux%ux8", xres, yres); more than 16 bytes will be written to strbuf. It is suggested to increase the size of the strbuf array to 24.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 · Out-of-bounds Write