Vulnerabilities > CVE-2018-9234 - Key Management Errors vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 2 | |
| OS | 4 |
Common Weakness Enumeration (CWE)
Nessus
NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2018-1025.NASL description Unenforced configuration allows for apparently valid certifications actually signed by signing subkeys : 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. (CVE-2018-9234) last seen 2020-06-01 modified 2020-06-02 plugin id 110199 published 2018-05-30 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110199 title Amazon Linux AMI : gnupg2 (ALAS-2018-1025) NASL family Fedora Local Security Checks NASL id FEDORA_2018-3FC05E009D.NASL description Minor update from upstream with fix for CVE-2018-9234 and other bug fixes. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2018-04-16 plugin id 109048 published 2018-04-16 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109048 title Fedora 27 : gnupg2 (2018-3fc05e009d) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3675-1.NASL description Marcus Brinkmann discovered that during decryption or verification, GnuPG did not properly filter out terminal sequences when reporting the original filename. An attacker could use this to specially craft a file that would cause an application parsing GnuPG output to incorrectly interpret the status of the cryptographic operation reported by GnuPG. (CVE-2018-12020) Lance Vick discovered that GnuPG did not enforce configurations where key certification required an offline master Certify key. An attacker with access to a signing subkey could generate certifications that appeared to be valid. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-9234). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110475 published 2018-06-12 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110475 title Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : gnupg, gnupg2 vulnerabilities (USN-3675-1) NASL family Fedora Local Security Checks NASL id FEDORA_2018-42A426B17E.NASL description Minor update from upstream with fix for CVE-2018-9234 and other bug fixes. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2018-04-18 plugin id 109095 published 2018-04-18 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109095 title Fedora 26 : gnupg2 (2018-42a426b17e) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2589.NASL description According to the versions of the gnupg2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2018-9234) - The do_uncompress function in g10/compress.c in GnuPG 1.x before 1.4.17 and 2.x before 2.0.24 allows context-dependent attackers to cause a denial of service (infinite loop) via malformed compressed packets, as demonstrated by an a3 01 5b ff byte sequence.(CVE-2014-4617) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-12-18 plugin id 132124 published 2019-12-18 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/132124 title EulerOS 2.0 SP3 : gnupg2 (EulerOS-SA-2019-2589) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2393.NASL description According to the versions of the gnupg2 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2018-9234) - The do_uncompress function in g10/compress.c in GnuPG 1.x before 1.4.17 and 2.x before 2.0.24 allows context-dependent attackers to cause a denial of service (infinite loop) via malformed compressed packets, as demonstrated by an a3 01 5b ff byte sequence.(CVE-2014-4617) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-12-10 plugin id 131885 published 2019-12-10 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131885 title EulerOS 2.0 SP2 : gnupg2 (EulerOS-SA-2019-2393) NASL family Fedora Local Security Checks NASL id FEDORA_2018-DA6A17E6A3.NASL description Minor update from upstream with fix for CVE-2018-9234 and other bug fixes. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2019-01-03 plugin id 120838 published 2019-01-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120838 title Fedora 28 : gnupg2 (2018-da6a17e6a3)