PT-2024-27179 · Libmodbus+2 · Libmodbus+2

Balckgu1O · Published 2024-05-31 · Updated 2025-05-06 · CVE-2024-36845

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions libmodbus version 3.1.6

Description The issue is related to an invalid pointer in the modbus receive() function, which allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.

Recommendations For libmodbus version 3.1.6, consider disabling the modbus receive() function as a temporary workaround until a patch is available. Restrict access to the unit-test-server to minimize the risk of exploitation.

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALT-PU-2025-6305

CVE-2024-36845

DLA-4084-1

Affected Products

Alt Linux

Debian

Libmodbus

References · 13

• https://github.com/stephane/libmodbus/issues/750 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-36845 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-36845 · Security Note
• https://cve.org/CVERecord?id=CVE-2024-36845 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-36845 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-36845 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4084-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-36845 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-36845 · Vendor Advisory
• https://t.me/cvenotify/81663 · Telegram Post
• https://t.me/cvenotify/120472 · Telegram Post
• https://t.me/cvenotify/81781 · Telegram Post
• https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html · Note