CVE-2017-3733

Encrypt-Then-Mac renegotiation crash

published May 4, 2017

CVSS
—
EPSS
13%
Percentile
96.3
In the wild
Unconfirmed
What it is

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.12874 · 96.3th percentile
Published
2017-05-04T19:00Z
EPSS history
Timeline
  • 04 MAY 19:00Z
    Encrypt-Then-Mac renegotiation crash
    cvelistv5