Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2014-3511

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.

Published

2014-08-13T23:55:07.623

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0a Yes
Application openssl openssl 1.0.0b Yes
Application openssl openssl 1.0.0c Yes
Application openssl openssl 1.0.0d Yes
Application openssl openssl 1.0.0e Yes
Application openssl openssl 1.0.0f Yes
Application openssl openssl 1.0.0g Yes
Application openssl openssl 1.0.0h Yes
Application openssl openssl 1.0.0i Yes
Application openssl openssl 1.0.0j Yes
Application openssl openssl 1.0.0k Yes
Application openssl openssl 1.0.0l Yes
Application openssl openssl 1.0.0m Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1a Yes
Application openssl openssl 1.0.1b Yes
Application openssl openssl 1.0.1c Yes
Application openssl openssl 1.0.1d Yes
Application openssl openssl 1.0.1e Yes
Application openssl openssl 1.0.1f Yes
Application openssl openssl 1.0.1g Yes
Application openssl openssl 1.0.1h Yes
References