Vulnerability CVE-2018-9234
Published: 2018-04-03   Modified: 2018-04-04

Description:
GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.

Type:

CWE-320

 (Key Management Errors)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Gnupg -> Gnupg 
Canonical -> Ubuntu linux 

 References:
https://dev.gnupg.org/T3844
https://usn.ubuntu.com/3675-1/
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