CVE-2022-37026

Publication date 21 September 2022

Last updated 18 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

In Erlang/OTP before 23.3.4.15, 24.x before 24.3.4.2, and 25.x before 25.0.2, there is a Client Authentication Bypass in certain client-certification situations for SSL, TLS, and DTLS.

From the Ubuntu Security Team

It was discovered that Erlang did not properly implement TLS client certificate validation during the TLS handshake. A remote attacker could use this issue to bypass client authentication.

Read the notes from the security team

Status

Package Ubuntu Release Status
erlang 25.10 questing
Fixed 1:24.3.4.5+dfsg-1
25.04 plucky
Fixed 1:24.3.4.5+dfsg-1
24.10 oracular
Fixed 1:24.3.4.5+dfsg-1
24.04 LTS noble
Fixed 1:24.3.4.5+dfsg-1
23.10 mantic
Fixed 1:24.3.4.5+dfsg-1
23.04 lunar
Fixed 1:24.3.4.5+dfsg-1
22.10 kinetic
Fixed 1:24.3.4.1+dfsg-1ubuntu0.1
22.04 LTS jammy
Fixed 1:24.2.1+dfsg-1ubuntu0.1
20.04 LTS focal
Fixed 1:22.2.7+dfsg-1ubuntu0.2
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Notes

mdeslaur

only an issue when client certificates are used

Patch details

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

Package Patch details
erlang

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references