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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.

 It was discovered that Snapcraft includes the current directory when configuring LD_LIBRARY_PATH for application commands. If a user were tricked into installing a malicious snap or downloading a malicious library, under certain circumstances an attacker could exploit this to affect strict mode snaps that have access to the library and when launched from the directory containing the library.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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: 1.6

Type: local

Agent: unix

Published: 12/4/2020

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, 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: p-cpe:/a:canonical:ubuntu_linux:snapcraft-examples, p-cpe:/a:canonical:ubuntu_linux:snapcraft, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:snapcraft-parser

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

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