[SECURITY] [DLA 4132-1] erlang security update

Vulnerability Details

Basic Information

Title [SECURITY] [DLA 4132-1] erlang security update
Type debian
Published 2025-04-20T23:48:59
Last Seen 2025-04-21T07:55:44
CVSS Score 10.0 (CRITICAL)

CVSS v3 Details

Attack Vector NETWORK
Attack Complexity LOW
Privileges Required NONE
User Interaction NONE
Scope CHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH

CVE Information

CVE IDs CVE-2023-48795, CVE-2025-26618, CVE-2025-30211, CVE-2025-32433
CWE
Bulletin Family unix

Description

– ————————————————————————-
Debian LTS Advisory DLA-4132-1 [email protected]
https://www.debian.org/lts/security/ Bastien Roucariรƒยจs
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

Impact Assessment

Base Score 10.0
Severity CRITICAL

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