CVE-2022-26353 Memory corruption in qemu-kvm
A memory leak in QEMU's virtio-net device can lead to resource exhaustion and denial of service due to improper unmapping of cached elements.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-26353?
CVE-2022-26353 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 16 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.
Weakness: CWE-772
Which versions are affected by CVE-2022-26353?
It affects 2 products.
Products include Debian Debian Linux, Qemu Qemu.
How do I fix CVE-2022-26353?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-26353 being exploited?
There is no known exploitation of CVE-2022-26353 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-35157, AZL-9748, DEBIAN-CVE-2022-26353, GHSA-xrwp-4qvv-59wr, UBUNTU-CVE-2022-26353.