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CVE-2019-18836

nvd nist
Published: Nov 11, 2019Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

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."

Affected (2)

Products: Envoyproxy: Envoy · Istio: Istio
Envoyproxy
1 product
Envoy
Istio
1 product
Istio
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Envoy
Version 1.12.0
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Istio
From 1.3.0 to 1.3.3

Related CWEs

CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

References (8)

Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.