CVE-2023-31082 Denial of service in n/a
A sleeping function called from an invalid context in the Linux kernel's GSM driver can block the kernel, causing a denial of service.
- 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-2023-31082?
CVE-2023-31082 is a medium-severity denial of service vulnerability in Linux kernel, published on 24 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in drivers/tty/n_gsm.c in the Linux kernel 6.2. There is a sleeping function called from an invalid context in gsmld_write, which will block the kernel. Note: This has been disputed by 3rd parties as not a valid vulnerability.
Weakness: CWE-763
Which versions are affected by CVE-2023-31082?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-31082?
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-2023-31082 being exploited?
There is no known exploitation of CVE-2023-31082 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2023-31082, GHSA-8mp8-j92p-f4q7, ROOT-OS-DEBIAN-11-CVE-2023-31082, ROOT-OS-DEBIAN-12-CVE-2023-31082, ROOT-OS-DEBIAN-13-CVE-2023-31082, ROOT-OS-UBUNTU-2204-CVE-2023-31082 and 2 more.