Improper input validation in OpenSSL - CVE-2017-3733
Published: February 16, 2017
Vulnerability identifier: #VU5839
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-2017-3733
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenSSL Software Foundation
Affected software:
OpenSSL
OpenSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to cause denial of service.
The vulnerability exists due to improper input validation during a renegotiation handshake, if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake. A remote attacker can send a specially crafted data to vulnerable application and case denial of service conditions.
Successful exploitation of the vulnerability may result in denial of service (DoS) attack.
How to mitigate CVE-2017-3733
Update to version 1.1.0e.