CVE-2021-33634 Malicious image running containers may cause DoS attacks
Malicious container images can cause denial of service in iSulad using the default lcr+lxc runtime, affecting openEuler systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-33634?
CVE-2021-33634 is a medium-severity denial of service vulnerability in openEuler lcr, published on 29 Oct 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
iSulad uses the lcr+lxc runtime (default) to run malicious images, which can cause DOS.
Weakness: CWE-665
Which versions are affected by CVE-2021-33634?
It affects 1 product.
Products include Openeuler Icr.
How do I fix CVE-2021-33634?
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-2021-33634 being exploited?
There is no known exploitation of CVE-2021-33634 in the wild and no public exploit code.
Sources
Also known as GHSA-5mrv-f9xf-hpqp, OESA-2023-1692.