Denial of service in Undertow - CVE-2017-2670
Published: July 12, 2017 / Updated: July 17, 2017
Vulnerability identifier: #VU7547
CSH Severity: Medium
CVSS v4.0: 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-2017-2670
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Red Hat Inc.
Affected software:
Undertow
Undertow
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error when closing TCP sockets in Undertow. A remote attacker can create and close multiple TCP connections, which my result in infinite loop and server crash.
How to mitigate CVE-2017-2670
Update to version 1.4.18.