Detections
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Azure Linux 3.0 Security Update: dhcp (CVE-2022-2929)

medium Nessus Plugin ID 295050

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Synopsis

The remote Azure Linux host is missing one or more security updates.

Description

The version of dhcp installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-2929 advisory.

 - In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory. (CVE-2022-2929)

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 packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2022-2929

Plugin Details

Severity: Medium

ID: 295050

File Name: azure_linux_CVE-2022-2929.nasl

Version: 1.1

Type: local

Published: 1/22/2026

Updated: 1/22/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2022-2929

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:dhcp-client, p-cpe:/a:microsoft:azure_linux:dhcp-devel, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:dhcp-libs, p-cpe:/a:microsoft:azure_linux:dhcp-server

Required KB Items: Host/local_checks_enabled, Host/AzureLinux/release, Host/AzureLinux/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/9/2024

Vulnerability Publication Date: 10/6/2022

Reference Information

CVE: CVE-2022-2929