CVE-2020-8661 Denial of service in n/a
Attackers can cause excessive memory consumption in Envoy proxy via pipelined requests, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-8661?
CVE-2020-8661 is a high-severity denial of service vulnerability in Envoyproxy Envoy, published on 4 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CNCF Envoy through 1.13.0 may consume excessive amounts of memory when responding internally to pipelined requests.
Weakness: CWE-400
Which versions are affected by CVE-2020-8661?
1 open source package ship an affected version, including envoy. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
envoy Bitnami | All versions to 1.13.0 | None |
Products include Envoyproxy Envoy, Redhat Openshift Service Mesh.
How do I fix CVE-2020-8661?
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-2020-8661 being exploited?
There is no known exploitation of CVE-2020-8661 in the wild and no public exploit code.
Other vulnerabilities in Envoyproxy Envoy
Sources
Also known as BIT-envoy-2020-8661, GHSA-36cq-ww7h-p4j7.