Vulnerability Description
Envoy 1.12.0 allows a remote denial of service because of resource loops, as demonstrated by a single idle TCP connection being able to keep a worker thread in an infinite busy loop when continue_on_listener_filters_timeout is used."
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Envoyproxy | Envoy | 1.12.0 |
| Istio | Istio | >= 1.3.0, <= 1.3.3 |
Related Weaknesses (CWE)
References
- https://blog.envoyproxy.ioVendor Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xvf-4396-cj46ExploitThird Party Advisory
- https://github.com/istio/istio/issues/18229ExploitThird Party Advisory
- https://groups.google.com/forum/#%21forum/envoy-users
- https://blog.envoyproxy.ioVendor Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xvf-4396-cj46ExploitThird Party Advisory
- https://github.com/istio/istio/issues/18229ExploitThird Party Advisory
- https://groups.google.com/forum/#%21forum/envoy-users
FAQ
What is CVE-2019-18836?
CVE-2019-18836 is a vulnerability with a CVSS score of 7.5 (HIGH). Envoy 1.12.0 allows a remote denial of service because of resource loops, as demonstrated by a single idle TCP connection being able to keep a worker thread in an infinite busy loop when continue_on_l...
How severe is CVE-2019-18836?
CVE-2019-18836 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-18836?
Check the references section above for vendor advisories and patch information. Affected products include: Envoyproxy Envoy, Istio Istio.