Input validation error in Istio - CVE-2019-14993
Published: August 13, 2019 / Updated: August 8, 2020
Vulnerability identifier: #VU35637
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2019-14993
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.
Affected software
Istio
How to mitigate CVE-2019-14993
Install update from vendor's website.
Istio - update to 1.2.4