CVE-2024-36844

NameCVE-2024-36844
Descriptionlibmodbus 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libmodbus (PTS)buster3.1.4-2+deb10u1vulnerable
buster (security)3.1.4-2+deb10u2vulnerable
bullseye3.1.6-2vulnerable
bookworm3.1.6-2.1vulnerable
sid, trixie3.1.10-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libmodbussource(unstable)(unfixed)

Notes

[bookworm] - libmodbus <no-dsa> (Minor issue)
[bullseye] - libmodbus <no-dsa> (Minor issue)
[buster] - libmodbus <postponed> (Minor issue)
https://github.com/stephane/libmodbus/issues/749

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