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Ubuntu 16.04 ESM : Zstandard vulnerabilities (USN-5720-1)

medium Nessus Plugin ID 167229

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5720-1 advisory.

 It was discovered that Zstandard was not properly managing file permissions when generating output files.
 A local attacker could possibly use this issue to cause a race condition and gain unauthorized access to sensitive data.

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

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

Solution

Update the affected libzstd1, libzstd1-dev and / or zstd packages.

See Also

https://ubuntu.com/security/notices/USN-5720-1

Plugin Details

Severity: Medium

ID: 167229

File Name: ubuntu_USN-5720-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 11/9/2022

Updated: 8/29/2024

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: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-24031

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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:libzstd1, p-cpe:/a:canonical:ubuntu_linux:libzstd1-dev, p-cpe:/a:canonical:ubuntu_linux:zstd, cpe:/o:canonical:ubuntu_linux:16.04:-:esm

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: 11/9/2022

Vulnerability Publication Date: 3/4/2021

Reference Information

CVE: CVE-2021-24031, CVE-2021-24032

USN: 5720-1