Detections
Analytics

Azure Linux 3.0 Security Update: haproxy (CVE-2025-32464)

medium Nessus Plugin ID 295824

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Synopsis

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

Description

The version of haproxy 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-2025-32464 advisory.

 - HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sample_conv_regsub heap-based buffer overflow because of mishandling of the replacement of multiple short patterns with a longer one.
 (CVE-2025-32464)

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-2025-32464

Plugin Details

Severity: Medium

ID: 295824

File Name: azure_linux_CVE-2025-32464.nasl

Version: 1.1

Type: local

Published: 1/22/2026

Updated: 1/22/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2025-32464

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/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:haproxy, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:haproxy-debuginfo, p-cpe:/a:microsoft:azure_linux:haproxy-doc

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: 4/8/2025

Vulnerability Publication Date: 4/8/2025

Reference Information

CVE: CVE-2025-32464

IAVB: 2025-B-0074-S