Debian DLA-3231-1 : dlt-daemon - LTS security update

critical Nessus Plugin ID 168488


The remote Debian host is missing one or more security-related updates.


The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3231 advisory.

- A buffer overflow in the dlt_filter_load function in dlt_common.c from dlt-daemon through 2.18.5 (GENIVI Diagnostic Log and Trace) allows arbitrary code execution because fscanf is misused (no limit on the number of characters to be read in the format argument). (CVE-2020-29394)

- The daemon in GENIVI diagnostic log and trace (DLT), is vulnerable to a heap-based buffer overflow that could allow an attacker to remotely execute arbitrary code on the DLT-Daemon (versions prior to 2.18.6).

- An issue in dlt_config_file_parser.c of dlt-daemon v2.18.8 allows attackers to cause a double free via crafted TCP packets. (CVE-2022-31291)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.


Upgrade the dlt-daemon packages.

For Debian 10 buster, these problems have been fixed in version 2.18.0-1+deb10u1.

See Also

Plugin Details

Severity: Critical

ID: 168488

File Name: debian_DLA-3231.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/8/2022

Updated: 9/20/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-36244


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:dlt-daemon, p-cpe:/a:debian:debian_linux:dlt-tools, p-cpe:/a:debian:debian_linux:libdlt-dev, p-cpe:/a:debian:debian_linux:libdlt-examples, p-cpe:/a:debian:debian_linux:libdlt2, cpe:/o:debian:debian_linux:10.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/7/2022

Vulnerability Publication Date: 11/30/2020

Reference Information

CVE: CVE-2020-29394, CVE-2020-36244, CVE-2022-31291