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Ubuntu 16.04 LTS / 18.04 LTS : Snapcraft vulnerability (USN-4661-1)

medium Nessus Plugin ID 143476

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4661-1 advisory.

 - In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar. This issue affects snapcraft versions prior to 4.4.4, prior to 2.43.1+16.04.1, and prior to 2.43.1+18.04.1. (CVE-2020-27348)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected snapcraft, snapcraft-examples and / or snapcraft-parser packages.

See Also

https://ubuntu.com/security/notices/USN-4661-1

Plugin Details

Severity: Medium

ID: 143476

File Name: ubuntu_USN-4661-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 12/4/2020

Updated: 10/21/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-27348

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:snapcraft, p-cpe:/a:canonical:ubuntu_linux:snapcraft-examples, p-cpe:/a:canonical:ubuntu_linux:snapcraft-parser

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: 12/3/2020

Vulnerability Publication Date: 12/4/2020

Reference Information

CVE: CVE-2020-27348

USN: 4661-1