CVE-2024-53043 mctp i2c: handle NULL header address
A NULL pointer dereference in the Linux kernel MCTP I2C driver can cause a system crash when handling packets without neighbor table entries.
- 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-2024-53043?
CVE-2024-53043 is a medium-severity vulnerability in Linux kernel, published on 19 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:
mctp i2c: handle NULL header address
daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped.
saddr will usually be set by MCTP core, but check for NULL in case a packet is transmitted by a different protocol.
Weakness: CWE-476
Which versions are affected by CVE-2024-53043?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53043?
Apply the vendor's patch.
Is CVE-2024-53043 being exploited?
There is no known exploitation of CVE-2024-53043 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-53876, BELL-CVE-2024-53043, DEBIAN-CVE-2024-53043, GHSA-m2w9-hmqh-m77h, UBUNTU-CVE-2024-53043.