CVE-2025-30211

Publication date 28 March 2025

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.1, 26.2.5.10, and 25.3.2.19, a maliciously formed KEX init message can result with high memory usage. Implementation does not verify RFC specified limits on algorithm names (64 characters) provided in KEX init message. Big KEX init packet may lead to inefficient processing of the error data. As a result, large amount of memory will be allocated for processing malicious data. Versions OTP-27.3.1, OTP-26.2.5.10, and OTP-25.3.2.19 fix the issue. Some workarounds are available. One may set option `parallel_login` to `false` and/or reduce the `max_sessions` option.

Status

Package Ubuntu Release Status
erlang 25.04 plucky
Fixed 1:27.3+dfsg-1ubuntu1
24.10 oracular
Fixed 1:25.3.2.12+dfsg-1ubuntu2.2
24.04 LTS noble
Fixed 1:25.3.2.8+dfsg-1ubuntu4.2
22.04 LTS jammy
Fixed 1:24.2.1+dfsg-1ubuntu0.3
20.04 LTS focal
Fixed 1:22.2.7+dfsg-1ubuntu0.4
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H