CVE-2025-30472

Publication date 22 March 2025

Last updated 19 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.0 · Critical

Score breakdown

Description

Corosync through 3.1.9, if encryption is disabled or the attacker knows the encryption key, has a stack-based buffer overflow in orf_token_endian_convert in exec/totemsrp.c via a large UDP packet.

Read the notes from the security team

Status

Package Ubuntu Release Status
corosync 25.10 questing
Fixed 3.1.8-3ubuntu2
25.04 plucky
Fixed 3.1.8-3ubuntu2
24.10 oracular
Fixed 3.1.8-2ubuntu1.1
24.04 LTS noble
Fixed 3.1.7-1ubuntu3.1
22.04 LTS jammy
Fixed 3.1.6-1ubuntu1.1
20.04 LTS focal
Fixed 3.0.3-2ubuntu2.2
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation

Notes

mdeslaur

Because of stack-protector, this is likely a denial of service only from an authenticated user.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
corosync

Severity score breakdown

Parameter Value
Base score 9.0 · Critical
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references