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HistoryNov 08, 2023 - 12:00 a.m.

OpenSSL -- DoS in DH generation

2023-11-0800:00:00
vuxml.freebsd.org
10
openssl
dos
dh
generation
vulnerability
report
excessive time
large q parameter
slow
x9.42
keys
parameters

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

6.9 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

44.7%

The OpenSSL project reports:

Excessive time spent in DH check / generation with large Q
parameter value (low).
Generating excessively long X9.42 DH keys or checking
excessively long X9.42 DH keys or parameters may be very slow.

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

6.9 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

44.7%