CVE-2022-3649 Linux Kernel BPF inode.c nilfs_new_inode use after free
A use-after-free vulnerability in the Linux Kernel's nilfs2 filesystem allows remote attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-3649?
CVE-2022-3649 is a low-severity use after free vulnerability in Debian Debian Linux, published on 21 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_new_inode of the file fs/nilfs2/inode.c of the component BPF. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211992.
Which versions are affected by CVE-2022-3649?
It affects 7 products.
Products include Debian Debian Linux, Linux kernel, Netapp Active Iq Unified Manager, Netapp H300s Firmware, Netapp H410s Firmware, Netapp H500s Firmware and 1 more.
How do I fix CVE-2022-3649?
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-2022-3649 being exploited?
There is no known exploitation of CVE-2022-3649 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2022-3649, GHSA-x63h-2cwq-phxf, UBUNTU-CVE-2022-3649.