CVE-2025-30211 | THREATINT

Description

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.

PUBLISHED Reserved 2025-03-18 | Published 2025-03-28 | Updated 2025-11-03 | Assigner GitHub_M

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-789: Memory Allocation with Excessive Size Value

Product status

< OTP-27.3.1

affected

< OTP-26.2.5.10

affected

< OTP-25.3.2.19

affected

References

lists.debian.org/debian-lts-announce/2025/04/msg00028.html

github.com/...ng/otp/security/advisories/GHSA-vvr3-fjhh-cfwc

cve.org (CVE-2025-30211)

nvd.nist.gov (CVE-2025-30211)

Download JSON