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CVE-2024-3596

Publication date 9 July 2024

Last updated 3 October 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.1 · High

Score breakdown

RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack against MD5 Response Authenticator signature.

Read the notes from the security team

Mitigation

Disable the use of RADIUS/UDP and RADIUS/TCP - instead RADIUS/TLS or RADIUS/DTLS should be used.

Status

Package Ubuntu Release Status
freeradius 24.10 oracular
Not affected
24.04 LTS noble
Fixed 3.2.5+dfsg-3~ubuntu24.04.1
23.10 mantic Ignored end of life, was needed
22.04 LTS jammy
Fixed 3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.3
20.04 LTS focal
Fixed 3.0.20+dfsg-3ubuntu0.4
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable

Notes

alexmurray

RADIUS clients may also be affected

mdeslaur

This vulnerability is known as Blast-RADIUS

Patch details

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

Package Patch details
freeradius

Severity score breakdown

Parameter Value
Base score 8.1 · High
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H