CVE-2022-48739 ASoC: hdmi-codec: Fix OOB memory accesses
Out-of-bounds memory read in the Linux kernel HDMI codec driver allows attackers to read sensitive memory or cause a system crash.
- 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-2022-48739?
CVE-2022-48739 is a high-severity memory corruption vulnerability in Linux kernel, published on 20 Jun 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:
ASoC: hdmi-codec: Fix OOB memory accesses
Correct size of iec_status array by changing it to the size of status array of the struct snd_aes_iec958. This fixes out-of-bounds slab read accesses made by memcpy() of the hdmi-codec driver. This problem is reported by KASAN.
Weakness: CWE-125
Which versions are affected by CVE-2022-48739?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48739?
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-2022-48739 being exploited?
There is no known exploitation of CVE-2022-48739 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48739, GHSA-86c2-5gmm-pc5g, UBUNTU-CVE-2022-48739.