CVE-2024-36844

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
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CVEADP
---
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CISA-ADPADP
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 60%
VendorProductVersion
libmodbuslibmodbus
3.1.6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libmodbus
bullseye
vulnerable
buster
postponed
bullseye (security)
3.1.6-2+deb11u1
fixed
bookworm
3.1.6-2.1
fixed
forky
3.1.11-2
fixed
sid
3.1.11-2
fixed
trixie
3.1.11-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libmodbus
questing
needs-triage
plucky
needs-triage
oracular
ignored
noble
needs-triage
mantic
ignored
jammy
needs-triage
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
needs-triage
Common Weakness Enumeration
References
https://github.com/stephane/libmodbus/issues/749
https://github.com/stephane/libmodbus/issues/749
https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html