SB2025072243 - Ubuntu update for erlang



SB2025072243 - Ubuntu update for erlang

Published: July 22, 2025

Security Bulletin ID SB2025072243
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Expected behavior violation (CVE-ID: CVE-2025-46712)

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to OTP SSH fails to enforce strict kex handshake hardening measures by allowing optional messages to be exchanged. A remote attacker can perform a Man-in-the-Middle attack and inject these messages in a connection during the handshake.


2) Path traversal (CVE-ID: CVE-2025-4748)

The vulnerability allows a remote attacker to write arbitrary files to the system.

The vulnerability exists due to improper validation of .zip archives in the Erlang/OTP standard-library ZIP routines "zip:unzip/1,2" and "zip:extract/1,2". A remote attacker can pass a specially crafted .zip archive to the application and write files to arbitrary locations on the system. 


Remediation

Install update from vendor's website.