Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2021-3639

Publication date 4 August 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.1 · Medium

Score breakdown

A flaw was found in mod_auth_mellon where it does not sanitize logout URLs properly. This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted web application URL that redirects to an external and potentially malicious server. The highest threat from this liability is to confidentiality and integrity.

Status

Package Ubuntu Release Status
libapache2-mod-auth-mellon 24.04 LTS noble
Fixed 0.17.0-1ubuntu1
23.10 mantic
Fixed 0.17.0-1ubuntu1
23.04 lunar
Fixed 0.17.0-1ubuntu1
22.10 kinetic
Fixed 0.17.0-1ubuntu1
22.04 LTS jammy
Fixed 0.17.0-1ubuntu1
21.10 impish
Fixed 0.17.0-1ubuntu1
21.04 hirsute
Fixed 0.17.0-1ubuntu0.21.04.1
20.04 LTS focal
Fixed 0.16.0-1ubuntu0.1
18.04 LTS bionic
Fixed 0.13.1-1ubuntu0.3
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Not in release

Patch details

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

Package Patch details
libapache2-mod-auth-mellon

Severity score breakdown

Parameter Value
Base score 6.1 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-5069-1
    • mod-auth-mellon vulnerability
    • 8 September 2021
    • USN-5069-2
    • mod-auth-mellon vulnerability
    • 8 September 2021

Other references