CVE-2022-21385 Denial of service in Oracle Linux
Unprivileged local users can crash the machine due to a flaw in the net_rds_alloc_sgs function of the Linux kernel.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-21385?
CVE-2022-21385 is a medium-severity denial of service vulnerability in Oracle Linux, published on 29 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw in net_rds_alloc_sgs() in Oracle Linux kernels allows unprivileged local users to crash the machine. CVSS 3.1 Base Score 6.2 (Availability impacts). CVSS Vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Which versions are affected by CVE-2022-21385?
It affects 1 product.
Products include Oracle Linux.
How do I fix CVE-2022-21385?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-21385 being exploited?
There is no known exploitation of CVE-2022-21385 in the wild and no public exploit code.
Other vulnerabilities in Oracle Linux
Sources
Also known as DEBIAN-CVE-2022-21385, GHSA-cvm5-935v-68v2, UBUNTU-CVE-2022-21385.