CVE-2024-36844 — Use After Free in Libmodbus

CWE-416 — Use After Free4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.5%
top 32.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
LibmodbusDebian Libmodbus
Timeline
PublishedMay 31

Description

libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend pointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/libmodbus< libmodbus 3.1.6-2.1 (bookworm)
▶Debianlibmodbus/libmodbus< 3.1.6-2+deb11u1+3

🔴Vulnerability Details

2
GHSA
GHSA-2625-j643-gg22: libmodbus v3↗2024-05-31
▶
OSV
CVE-2024-36844: libmodbus v3↗2024-05-31
▶

📋Vendor Advisories

1
Debian
CVE-2024-36844: libmodbus - libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend...↗2024
▶
CVE-2024-36844 — Use After Free in Debian Libmodbus | cvebase