Debian dla-4132 : erlang - security update

critical Nessus Plugin ID 234684

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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-4132 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4132-1 [email protected] https://www.debian.org/lts/security/ Bastien Roucaris April 21, 2025 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : erlang Version : 1:23.2.6+dfsg-1+deb11u2 CVE ID : CVE-2023-48795 CVE-2025-26618 CVE-2025-30211 CVE-2025-32433 Debian Bug : 1059002 1101713 1103442

Multiple vulnerabilties were fixed in erlang.

CVE-2023-48795 (Terrapin attack)

The SSH transport protocol with certain OpenSSH extensions, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded.

CVE-2025-26618

The SSH transport protocol with certain OpenSSH extensions, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded.

CVE-2025-30211

The SSH transport protocol with certain OpenSSH extensions, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded.

CVE-2025-32433

A SSH server may allow an attacker to perform unauthenticated remote code execution (RCE). By exploiting a flaw in SSH protocol message handling, a malicious actor could gain unauthorized access to affected systems and execute arbitrary commands without valid credentials.

For Debian 11 bullseye, these problems have been fixed in version 1:23.2.6+dfsg-1+deb11u2.

We recommend that you upgrade your erlang packages.

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

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 these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the erlang packages.

Plugin Details

Severity: Critical

ID: 234684

File Name: debian_DLA-4132.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/21/2025

Updated: 4/21/2025

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

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.2

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

CVSS Score Source: CVE-2023-48795

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:erlang-mode, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:erlang-runtime-tools, p-cpe:/a:debian:debian_linux:erlang-ssh, p-cpe:/a:debian:debian_linux:erlang-jinterface, p-cpe:/a:debian:debian_linux:erlang-erl-docgen, p-cpe:/a:debian:debian_linux:erlang, p-cpe:/a:debian:debian_linux:erlang-manpages, p-cpe:/a:debian:debian_linux:erlang-os-mon, p-cpe:/a:debian:debian_linux:erlang-nox, p-cpe:/a:debian:debian_linux:erlang-common-test, p-cpe:/a:debian:debian_linux:erlang-reltool, p-cpe:/a:debian:debian_linux:erlang-crypto, p-cpe:/a:debian:debian_linux:erlang-observer, p-cpe:/a:debian:debian_linux:erlang-edoc, p-cpe:/a:debian:debian_linux:erlang-x11, p-cpe:/a:debian:debian_linux:erlang-base, p-cpe:/a:debian:debian_linux:erlang-asn1, p-cpe:/a:debian:debian_linux:erlang-snmp, p-cpe:/a:debian:debian_linux:erlang-base-hipe, p-cpe:/a:debian:debian_linux:erlang-parsetools, p-cpe:/a:debian:debian_linux:erlang-xmerl, p-cpe:/a:debian:debian_linux:erlang-et, p-cpe:/a:debian:debian_linux:erlang-eunit, p-cpe:/a:debian:debian_linux:erlang-odbc, p-cpe:/a:debian:debian_linux:erlang-wx, p-cpe:/a:debian:debian_linux:erlang-examples, p-cpe:/a:debian:debian_linux:erlang-doc, p-cpe:/a:debian:debian_linux:erlang-ftp, p-cpe:/a:debian:debian_linux:erlang-eldap, p-cpe:/a:debian:debian_linux:erlang-mnesia, p-cpe:/a:debian:debian_linux:erlang-megaco, p-cpe:/a:debian:debian_linux:erlang-inets, p-cpe:/a:debian:debian_linux:erlang-src, p-cpe:/a:debian:debian_linux:erlang-tftp, p-cpe:/a:debian:debian_linux:erlang-dialyzer, p-cpe:/a:debian:debian_linux:erlang-tools, p-cpe:/a:debian:debian_linux:erlang-diameter, p-cpe:/a:debian:debian_linux:erlang-syntax-tools, p-cpe:/a:debian:debian_linux:erlang-public-key, p-cpe:/a:debian:debian_linux:erlang-ssl, p-cpe:/a:debian:debian_linux:erlang-dev, p-cpe:/a:debian:debian_linux:erlang-debugger

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: 4/21/2025

Vulnerability Publication Date: 12/18/2023

Reference Information

CVE: CVE-2023-48795, CVE-2025-26618, CVE-2025-30211, CVE-2025-32433

IAVA: 2025-A-0286

Detections

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