CVE-2024-50180 fbdev: sisfb: Fix strbuf array overflow
A buffer overflow in the Linux kernel sisfb driver allows attackers to cause memory corruption, potentially leading to code execution or system crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-50180?
CVE-2024-50180 is a high-severity memory corruption vulnerability in Linux kernel, published on 8 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2024-50180?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-50180?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-50180 being exploited?
There is no known exploitation of CVE-2024-50180 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-53670, BELL-CVE-2024-50180, DEBIAN-CVE-2024-50180, GHSA-6hr7-2c35-r8xm, UBUNTU-CVE-2024-50180.