Detections
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Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : GnuPG vulnerabilities (USN-3675-1)

high Nessus Plugin ID 110475

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Synopsis

The remote Ubuntu host is missing one or more security updates.

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.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-3675-1

Plugin Details

Severity: High

ID: 110475

File Name: ubuntu_USN-3675-1.nasl

Version: 1.12

Type: local

Agent: unix

Published: 6/12/2018

Updated: 10/20/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2018-9234

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:gnupg-utils, p-cpe:/a:canonical:ubuntu_linux:gnupg2, p-cpe:/a:canonical:ubuntu_linux:gpg, p-cpe:/a:canonical:ubuntu_linux:gpg-agent, p-cpe:/a:canonical:ubuntu_linux:gpg-wks-client, p-cpe:/a:canonical:ubuntu_linux:gpg-wks-server, p-cpe:/a:canonical:ubuntu_linux:gpgconf, p-cpe:/a:canonical:ubuntu_linux:gpgsm, p-cpe:/a:canonical:ubuntu_linux:gpgv, p-cpe:/a:canonical:ubuntu_linux:gpgv-static, p-cpe:/a:canonical:ubuntu_linux:gpgv-udeb, p-cpe:/a:canonical:ubuntu_linux:gpgv-win32, p-cpe:/a:canonical:ubuntu_linux:gpgv2, p-cpe:/a:canonical:ubuntu_linux:scdaemon, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:gnupg, p-cpe:/a:canonical:ubuntu_linux:gnupg-agent, p-cpe:/a:canonical:ubuntu_linux:gnupg-curl, p-cpe:/a:canonical:ubuntu_linux:gnupg-l10n, p-cpe:/a:canonical:ubuntu_linux:gnupg-udeb, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:dirmngr

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/11/2018

Vulnerability Publication Date: 4/4/2018

Reference Information

CVE: CVE-2018-12020, CVE-2018-9234

IAVA: 2018-A-0193

USN: 3675-1