Several security issues were fixed in mod_auth_mellon.
It was discovered that mod_auth_mellon incorrectly handled certain requests. An attacker could possibly use this issue to redirect a user to a malicious URL. (CVE-2019-3877)
28 March 2019
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in mod_auth_mellon.
It was discovered that mod_auth_mellon incorrectly handled certain requests. An attacker could possibly use this issue to redirect a user to a malicious URL. (CVE-2019-3877)
It was discovered that mod_auth_mellon incorrectly handled certain requests. An attacker could possibly use this issue to access sensitive information. (CVE-2019-3878)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.