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CVE-2018-9234

Published: 3 April 2018

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.

Notes

AuthorNote
mdeslaur
only affects 2.1.21 and later

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
gnupg2
Launchpad, Ubuntu, Debian
upstream
Released (2.2.6)
trusty Does not exist
(trusty was not-affected [2.0.22-3ubuntu1.3])
xenial Not vulnerable
(2.1.11-6ubuntu2)
artful Not vulnerable
(2.1.15-1ubuntu8)
bionic
Released (2.2.4-1ubuntu1.1)
Patches:
upstream: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=a17d2d1f690ebe5d005b4589a5fe378b6487c657
gnupg
Launchpad, Ubuntu, Debian
upstream
Released (2.2.6)
trusty Not vulnerable

xenial Not vulnerable

artful Does not exist

bionic Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N