CVE-2023-52916 media: aspeed: Fix memory overwrite if timing is 1600x900
A memory overwrite in the Linux kernel's Aspeed media driver can cause a system crash when capturing 1600x900 video under tight memory conditions.
- 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-2023-52916?
CVE-2023-52916 is a high-severity memory corruption vulnerability in Linux kernel, published on 6 Sep 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:
media: aspeed: Fix memory overwrite if timing is 1600x900
When capturing 1600x900, system could crash when system memory usage is tight.
The way to reproduce this issue: 1. Use 1600x900 to display on host 2. Mount ISO through 'Virtual media' on OpenBMC's web 3. Run script as below on host to do sha continuously #!/bin/bash while [ [1] ]; do find /media -type f -printf '"%h/%f"\n' | xargs sha256sum done 4. Open KVM on OpenBMC's web
The size of macro block captured is 8x8. Therefore, we should make sure the height of src-buf is 8 aligned to fix this issue.
Weakness: CWE-787
Which versions are affected by CVE-2023-52916?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-52916?
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-2023-52916 being exploited?
There is no known exploitation of CVE-2023-52916 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-52916, DEBIAN-CVE-2023-52916, GHSA-722x-w6hg-5675, ROOT-OS-DEBIAN-11-CVE-2023-52916, ROOT-OS-UBUNTU-2204-CVE-2023-52916, UBUNTU-CVE-2023-52916.