Ubuntu Security Update USN-4597-1: mod_auth_mellon vulnerabilities

[LinuxBot]

François Kooman discovered that mod_auth_mellon incorrectly handled cookies. An attacker could possibly use this issue to cause a Cross-Site Session Transfer attack. (CVE-2017-6807) 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)

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