Input validation error in Reactor Netty - CVE-2020-5403
Published: March 4, 2020
Vulnerability identifier: #VU25771
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5403
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the affected software is exposed to a URISyntaxException that causes the connection to be closed prematurely instead of producing a 400 response. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Reactor Netty
How to mitigate CVE-2020-5403
Install updates from vendor's website.
Reactor Netty - update to 0.9.5