#VU41413 Input validation error in OpenSSL - CVE-2014-3511

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Main Vulnerability Database Vulnerabilities #VU41413

#VU41413 Input validation error in OpenSSL - CVE-2014-3511

Published: August 14, 2014 / Updated: August 10, 2020


Vulnerability identifier: #VU41413
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-3511
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
OpenSSL
Software vendor:
OpenSSL Software Foundation

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication between a client and server that both support later TLS versions, related to a "protocol downgrade" issue.


Remediation

Install update from vendor's website.

External links