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Ubuntu 20.04 LTS USN-5069-1 Moderate: libapache2-mod-auth-mellon Redirect

ubuntu
Calendar Grey September 8, 2021
Dist Ubuntu Esm H88
Discover the libapache2-mod-auth-mellon security flaw that permits unwanted redirects to any web domain and explore remedial steps specific to Ubuntu installations.
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:

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 moderate threat update instructions Ubuntu 20.04 libapache2-mod-auth-mellon arbitrary redirect

Update Instructions

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

Ubuntu 20.04 LTS:
  libapache2-mod-auth-mellon      0.16.0-1ubuntu0.1

Ubuntu 18.04 LTS:
  libapache2-mod-auth-mellon      0.13.1-1ubuntu0.3

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

References

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

CVE-2021-3639

September 08, 2021

Topics%20covered

Topics Covered

security advisory moderate threat update instructions Ubuntu 20.04 libapache2-mod-auth-mellon arbitrary redirect

Package Information

https://launchpad.net/ubuntu/+source/libapache2-mod-auth-mellon/0.16.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libapache2-mod-auth-mellon/0.13.1-1ubuntu0.3

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