CVE-2018-9234: High severity gnupg GnuPG vulnerability

Published Apr 4, 2018
·
Updated

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.

Affected Software

7 affected componentsFixes available
gnupg GnuPG=2.2.4
gnupg GnuPG=2.2.5
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Canonical Ubuntu Linux=18.04
debian/gnupg2
2.2.27-2+deb11u22.2.27-2+deb11u32.2.40-1.1+deb12u22.4.7-21+deb13u12.4.9-7

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/gnupg2 to a version that resolves this vulnerability.

    Fixed in 2.2.27-2+deb11u2Fixed in 2.2.27-2+deb11u3Fixed in 2.2.40-1.1+deb12u2Fixed in 2.4.7-21+deb13u1Fixed in 2.4.9-7

Event History

Apr 4, 2018
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·12:29 AM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:11 PM
Description
Feb 20, 2026
Data Sourced
via Ubuntu·04:22 PM
RemedyDescriptionSeverityAffected Software
Jul 18, 2026
Data Sourced
via Debian·11:27 AM
DescriptionAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2018-9234?

The severity of CVE-2018-9234 is high with a severity value of 7.5.

2

How does CVE-2018-9234 affect GnuPG?

CVE-2018-9234 affects GnuPG versions 2.2.4 and 2.2.5.

3

What is the recommended remedy for CVE-2018-9234?

The recommended remedy for CVE-2018-9234 is to update GnuPG to version 2.2.6 or higher.

4

Are there any known exploits or references for CVE-2018-9234?

Yes, you can find more information about CVE-2018-9234 and known exploits or references at the following links: [link1], [link2], [link3].

5

What is the CWE category for CVE-2018-9234?

The CWE category for CVE-2018-9234 is CWE-320.

Contact

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