Debian dla-4478 : tcpflow - security update

medium Nessus Plugin ID 298570

Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4478 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4478-1 [email protected] https://www.debian.org/lts/security/ Paride Legovini February 10, 2026 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : tcpflow Version : 1.5.2+repack1-1+deb11u1 CVE ID : CVE-2026-25061 Debian Bug : #1126695

A bug has been found in the tcpflow package: a wrong length check in the 802.11 management frame parser allows a crafted frame with a large TIM length to cause an out-of-bounds write, resulting in a DoS and potentially in code execution.

For Debian 11 bullseye, this problem has been fixed in version 1.5.2+repack1-1+deb11u1.

We recommend that you upgrade your tcpflow packages.

For the detailed security status of tcpflow please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/tcpflow

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

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

Solution

Upgrade the tcpflow packages.

Plugin Details

Severity: Medium

ID: 298570

File Name: debian_DLA-4478.nasl

Version: 1.2

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/10/2026

Updated: 2/12/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-25061

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:tcpflow-nox, p-cpe:/a:debian:debian_linux:tcpflow

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/10/2026

Vulnerability Publication Date: 1/29/2026

Reference Information

CVE: CVE-2026-25061

Detections

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