Debian Security Advisory

DLA-2825-1 libmodbus -- LTS security update

Date Reported:
22 Nov 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2019-14462, CVE-2019-14463.
More information:

Two issues have been found in libmodbus, a library for the Modbus protocol. Both issues are related to out of bound reads, which could result in a denial of service or other unspecified impact.

For Debian 9 stretch, these problems have been fixed in version 3.0.6-2+deb9u1.

We recommend that you upgrade your libmodbus packages.

For the detailed security status of libmodbus please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: