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Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS : FLAC vulnerabilities (USN-5733-1)

medium Nessus Plugin ID 168010

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5733-1 advisory.

 It was discovered that FLAC was not properly performing memory management operations, which could result in a memory leak. An attacker could possibly use this issue to cause FLAC to consume resources, leading to a denial of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and Ubuntu 18.04 LTS.
 (CVE-2017-6888)

 It was discovered that FLAC was not properly performing bounds checking operations when decoding data. If a user or automated system were tricked into processing a specially crafted file, an attacker could possibly use this issue to expose sensitive information or to cause FLAC to crash, leading to a denial of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-0499)

 It was discovered that FLAC was not properly performing bounds checking operations when encoding data. If a user or automated system were tricked into processing a specially crafted file, an attacker could possibly use this issue to expose sensitive information or to cause FLAC to crash, leading to a denial of service. (CVE-2021-0561)

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 packages.

See Also

https://ubuntu.com/security/notices/USN-5733-1

Plugin Details

Severity: Medium

ID: 168010

File Name: ubuntu_USN-5733-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 11/21/2022

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-2021-0561

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libflac-dev, p-cpe:/a:canonical:ubuntu_linux:flac, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libflac8, p-cpe:/a:canonical:ubuntu_linux:libflac%2b%2b6v5, p-cpe:/a:canonical:ubuntu_linux:libflac%2b%2b-dev, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:libflac%2b%2b6

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/21/2022

Vulnerability Publication Date: 4/25/2018

Reference Information

CVE: CVE-2017-6888, CVE-2020-0499, CVE-2021-0561

USN: 5733-1