CVE-2022-2153 Null dereference in kernel
A local attacker can trigger a kernel oops and denial of service via specific ioctl calls due to a NULL pointer dereference in KVM SynIC IRQ handling.
- 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-2022-2153?
CVE-2022-2153 is a medium-severity vulnerability in Debian Debian Linux, published on 31 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.
Weakness: CWE-476
Which versions are affected by CVE-2022-2153?
It affects 4 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Redhat Enterprise Linux.
How do I fix CVE-2022-2153?
Apply the vendor's patch.
Is CVE-2022-2153 being exploited?
There is no known exploitation of CVE-2022-2153 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-10794, DEBIAN-CVE-2022-2153, GHSA-m5gv-cmjh-79r8, UBUNTU-CVE-2022-2153.