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ubuntucveUbuntu.comUB:CVE-2017-3733
HistoryMay 04, 2017 - 12:00 a.m.

CVE-2017-3733

2017-05-0400:00:00
ubuntu.com
ubuntu.com
11

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.036 Low

EPSS

Percentile

91.6%

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.

Notes

Author Note
mdeslaur only affects 1.1.x

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.036 Low

EPSS

Percentile

91.6%