Vulnerability CVE-2019-18836
Published: 2019-11-11

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."

Type:

CWE-835

 (Loop with Unreachable Exit Condition ('Infinite Loop'))

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Istio -> Istio 
Envoyproxy -> Envoy 

 References:
https://blog.envoyproxy.io
https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xvf-4396-cj46
https://github.com/istio/istio/issues/18229
https://groups.google.com/forum/#!forum/envoy-users
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