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Ubuntu 21.04 USN-5069-2 Critical: mod-auth-mellon Open Redirect

ubuntu
Calendar Grey September 8, 2021
Dist Ubuntu Esm H88
An update for libapache2-mod-auth-mellon on Ubuntu addresses an open redirect vulnerability that was reported on September 8, 2021.
mod-auth-mellon could be made to redirect to arbitrary sites.

Summary

mod-auth-mellon could be made to redirect to arbitrary sites.

Software Description:

- libapache2-mod-auth-mellon: SAML 2.0 authentication module for Apache

Details:

USN-5069-1 fixed a vulnerability in mod-auth-mellon. This update provides

the corresponding updates for Ubuntu 21.04.

Original advisory details:

It was discovered that mod-auth-mellon incorrectly filtered certain URLs.

A remote attacker could possibly use this issue to perform an open redirect

attack.

Topics%20covered

Topics Covered

security advisory remote attack ubuntu open redirect libapache2-mod-auth-mellon

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.04:
  libapache2-mod-auth-mellon      0.17.0-1ubuntu0.21.04.1

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5069-2

https://ubuntu.com/security/notices/USN-5069-1

CVE-2021-3639

Severity
critical
Lowest
Low
Medium
High
Critical

September 08, 2021

Topics%20covered

Topics Covered

security advisory remote attack ubuntu open redirect libapache2-mod-auth-mellon

Package Information

https://launchpad.net/ubuntu/+source/libapache2-mod-auth-mellon/0.17.0-1ubuntu0.21.04.1

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