CVE-2021-33054
Publication date 4 June 2021
Last updated 6 July 2026
Ubuntu priority
Cvss 3 Severity Score
Description
SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authentication method. (Only versions after 2.0.5a are affected.)
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| sogo | 26.04 LTS resolute |
Not affected
|
| 25.10 questing |
Not affected
|
|
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Fixed 4.3.0-1ubuntu0.1~esm1
|
|
| 18.04 LTS bionic |
Fixed 3.2.10-1ubuntu0.1~esm1
|
|
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Not in release |
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CVSS version: CVSS v3.0
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
Related Ubuntu Security Notices (USN)
- USN-8504-1
- SOGo vulnerabilities
- 5 July 2026
Other references
- https://www.sogo.nu/news/2021/saml-vulnerability.html
- https://blogs.akamai.com/2021/06/saml-implementation-vulnerability-impacting-some-akamai-services.html
- https://blogs.akamai.com/2021/06/akamai-eaa-impersonation-vulnerability---a-deep-dive.html
- https://blogs.akamai.com/2021/06/sogo-and-packetfence-impacted-by-saml-implementation-vulnerabilities.html
- https://github.com/inverse-inc/sogo/blob/master/CHANGELOG.md
- https://www.sogo.nu/news.html
- https://www.cve.org/CVERecord?id=CVE-2021-33054