CVE-2024-36929 net: core: reject skb_copy(_expand) for fraglist GSO skbs
A null pointer dereference in the Linux kernel network core can cause a system crash when processing specific fragmented GSO packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-36929?
CVE-2024-36929 is a high-severity vulnerability in Debian Debian Linux, published on 30 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
net: core: reject skb_copy(_expand) for fraglist GSO skbs
SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment.
Weakness: CWE-476
Which versions are affected by CVE-2024-36929?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2024-36929?
Apply the vendor's patch.
Is CVE-2024-36929 being exploited?
There is no known exploitation of CVE-2024-36929 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2024-36929, DEBIAN-CVE-2024-36929, UBUNTU-CVE-2024-36929.