Synopsis
The remote Debian host is missing one or more security-related updates.
Description
The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4459 advisory.
------------------------------------------------------------------------- Debian LTS Advisory DLA-4459-1 [email protected] https://www.debian.org/lts/security/ Andreas Henriksson January 29, 2026 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : libmatio Version : 1.5.19-2+deb11u1 CVE ID : CVE-2022-1515 CVE-2025-2338 CVE-2025-50343 Debian Bug : 1104247 1124797
Multiple vulnerabilities has been discovered in libmatio, a MAT File I/O Library.
CVE-2025-50343 A Denial of Service (DoS) and in certain cases heap corruption vulnerability was found, which could lead to potential remote code execution if libmatio is embedded in services that accepts user-supplied .mat files.
CVE-2025-2338 A Denial of Service (DoS) and head-based buffer overflow was found, which could potentially lead to remote code execution if libmatio is embedded in services that accepts user-supplied .mat files.
CVE-2022-1515 A memory leak was discovered in matio 1.5.21 and earlier. This could lead to a potential Denial of Service (DoS).
CVE-2020-36428 A heap-based buffer overflow was found which could lead to potential remote code execution if libmatio is embedded in services that accepts user-supplied .mat files.
Additionally CVE-2025-2337 and CVE-2020-36428 was investigated and deemed not to apply (directly) to this libmatio version.
For Debian 11 bullseye, these problems have been fixed in version 1.5.19-2+deb11u1.
We recommend that you upgrade your libmatio packages.
For the detailed security status of libmatio please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/libmatio
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade the libmatio-dev packages.
Plugin Details
File Name: debian_DLA-4459.nasl
Agent: unix
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libmatio-dev, p-cpe:/a:debian:debian_linux:matio-tools, p-cpe:/a:debian:debian_linux:libmatio11, p-cpe:/a:debian:debian_linux:libmatio-doc
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: Exploits are available
Patch Publication Date: 1/29/2026
Vulnerability Publication Date: 7/20/2021