CVE-2024-26735 ipv6: sr: fix possible use-after-free and null-ptr-deref
A use-after-free and null pointer dereference in the Linux kernel IPv6 Segment Routing subsystem can lead to system crashes or potential code execution.
- 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-2024-26735?
CVE-2024-26735 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 3 Apr 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:
ipv6: sr: fix possible use-after-free and null-ptr-deref
The pernet operations structure for the subsystem must be registered before registering the generic netlink family.
Which versions are affected by CVE-2024-26735?
It affects 10 products.
Products include Debian Debian Linux, Linux kernel, Netapp 8300 Firmware, Netapp 8700 Firmware, Netapp A400 Firmware, Netapp C400 Firmware and 4 more.
How do I fix CVE-2024-26735?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-26735 being exploited?
There is no known exploitation of CVE-2024-26735 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2024-26735, DEBIAN-CVE-2024-26735, GHSA-vmh5-6rg4-ggmq, UBUNTU-CVE-2024-26735.