Detections
Analytics

Ubuntu 16.04 ESM : LibASS vulnerabilities (USN-4797-1)

high Nessus Plugin ID 183548

Language:

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-4797-1 advisory.

 It was discovered that LibASS incorrectly handled certain ASS files. A remote attacker could possibly use this issue to cause a denial of service. One of the issues, CVE-2016-7970, only affected Ubuntu 16.04 ESM.
 (CVE-2016-7969, CVE-2016-7970, CVE-2016-7972)

 It was discovered that LibASS incorrectly handled parsing operations for specific nested character strings. An attacker could possibly use this issue to cause a denial of service. This issue was only fixed in Ubuntu 16.04 LTS. (CVE-2020-24994)

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 libass-dev and / or libass5 packages.

See Also

https://ubuntu.com/security/notices/USN-4797-1

Plugin Details

Severity: High

ID: 183548

File Name: ubuntu_USN-4797-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/20/2023

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: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2020-24994

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libass4, p-cpe:/a:canonical:ubuntu_linux:libass-dev, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:libass5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/4/2022

Vulnerability Publication Date: 10/4/2016

Reference Information

CVE: CVE-2016-7969, CVE-2016-7970, CVE-2016-7972, CVE-2020-24994

USN: 4797-1