Ubuntu Security Update USN-6876-1: Kopano Core vulnerabilities

[LinuxBot]

It was discovered that Kopano Core allowed out-of-bounds access. An attacker could use this issue to expose private information. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-19907) It was discovered that Kopano Core allowed possible authentication with expired passwords. An attacker could use this issue to bypass authentication. (CVE-2022-26562)

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