Resource exhaustion in Cncf Envoy
CVE-2020-8659
CNCF Envoy through 1.13.0 may consume excessive amounts of memory when proxying HTTP/1.1 requests or responses with many small (i.e. 1 byte) chunks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (78.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Cncf Envoy
- Debian Linux — versions 9.0
- Red Hat Openshift Service Mesh — versions 1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history (Third Party Advisory, Release Notes)
- github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv (Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0734 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/05/msg00025.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8659?
- CVE-2020-8659 is a high-severity vulnerability in Cncf Envoy, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-03-04.
- How severe is CVE-2020-8659?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-8659 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.