#VU35101 Infinite loop in envoy - CVE-2019-18836

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Main Vulnerability Database Vulnerabilities #VU35101

#VU35101 Infinite loop in envoy - CVE-2019-18836

Published: November 11, 2019 / Updated: August 8, 2020


Vulnerability identifier: #VU35101
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-18836
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
envoy
Software vendor:
Cloud Native Computing Foundation

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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."


Remediation

Install update from vendor's website.

External links