CVE-2022-49563 crypto: qat - add param check for RSA
An integer underflow in the Linux kernel's QAT crypto driver allows attackers to cause a denial of service via crafted RSA requests.
- 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-2022-49563?
CVE-2022-49563 is a high-severity vulnerability in Linux kernel, published on 26 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
crypto: qat - add param check for RSA
Reject requests with a source buffer that is bigger than the size of the key. This is to prevent a possible integer underflow that might happen when copying the source scatterlist into a linear buffer.
Weakness: CWE-191
Which versions are affected by CVE-2022-49563?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49563?
Apply the vendor's patch.
Is CVE-2022-49563 being exploited?
There is no known exploitation of CVE-2022-49563 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49563, GHSA-2cw6-9977-gcw6, ROOT-OS-DEBIAN-11-CVE-2022-49563, UBUNTU-CVE-2022-49563.