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Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : Expat vulnerabilities (USN-5638-2)

high Nessus Plugin ID 167852

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Synopsis

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

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5638-2 advisory.

 USN-5638-1 fixed a vulnerability in Expat. This update provides the corresponding updates for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

 It was discovered that Expat incorrectly handled memory in out-of-memory situations. An attacker could possibly use this issue to cause a crash,

 resulting in a denial of service, or possibly execute arbitrary code.

 This issue only affected Ubuntu 18.04 LTS. (CVE-2022-43680)



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 expat, libexpat1 and / or libexpat1-dev packages.

See Also

https://ubuntu.com/security/notices/USN-5638-2

Plugin Details

Severity: High

ID: 167852

File Name: ubuntu_USN-5638-2.nasl

Version: 1.7

Type: local

Agent: unix

Published: 11/18/2022

Updated: 10/29/2024

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: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2022-40674

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libexpat1, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:expat, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libexpat1-dev

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: 11/17/2022

Vulnerability Publication Date: 9/14/2022

Reference Information

CVE: CVE-2022-40674, CVE-2022-43680

USN: 5638-2