4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.007 Low
EPSS
Percentile
80.6%
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.