CVE-2020-1702 Denial of service in containers/image
A malicious container image can cause a denial of service by consuming unbounded memory during the pull process in container runtimes.
- 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-2020-1702?
CVE-2020-1702 is a low-severity denial of service vulnerability in Redhat Enterprise Linux, published on 27 May 2021. 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
A malicious container image can consume an unbounded amount of memory when being pulled to a container runtime host, such as Red Hat Enterprise Linux using podman, or OpenShift Container Platform. An attacker can use this flaw to trick a user, with privileges to pull container images, into crashing the process responsible for pulling the image. This flaw affects containers-image versions before 5.2.0.
Weakness: CWE-400
Which versions are affected by CVE-2020-1702?
It affects 2 products.
Linux distribution packages (5)
cri-o Red Hat:openshift:3.11::el7 | All versions | 0:1.11.16-0.9.dev.rhaos3.11.git6d43aae.el7 |
cri-o-debuginfo Red Hat:openshift:3.11::el7 | All versions | 0:1.11.16-0.9.dev.rhaos3.11.git6d43aae.el7 |
containers-common Red Hat:rhel_extras_other:7 | All versions | 1:0.1.40-11.el7_8 |
skopeo Red Hat:rhel_extras_other:7 | All versions | 1:0.1.40-11.el7_8 |
skopeo-debuginfo Red Hat:rhel_extras_other:7 | All versions | 1:0.1.40-11.el7_8 |
Products include Containers-Image Project Containers-Image, Redhat Enterprise Linux.
How do I fix CVE-2020-1702?
Upgrade to a fixed version.
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-2020-1702 being exploited?
There is no known exploitation of CVE-2020-1702 in the wild and no public exploit code.
Sources
Also known as GHSA-f6vj-xx8j-fqmq, RHSA-2020:2218, RHSA-2020:2681.