Advisory Published

USN-6876-1: Kopano Core vulnerabilities

First published: Thu Jul 04 2024(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/kopano-archiver<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-contacts<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-dagent<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-gateway<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-ical<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-libs<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-monitor<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-server<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-spooler<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-utils<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/php-mapi<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/python3-mapi<8.7.0-7.1ubuntu10.1
8.7.0-7.1ubuntu10.1
Ubuntu=22.04
All of
ubuntu/kopano-archiver<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-contacts<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-dagent<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-gateway<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-ical<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-libs<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-monitor<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-server<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-spooler<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-utils<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/php-mapi<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/python3-mapi<8.7.0-7ubuntu1.1
8.7.0-7ubuntu1.1
Ubuntu=20.04
All of
ubuntu/kopano-archiver<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-contacts<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-dagent<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-gateway<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-ical<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-libs<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-monitor<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-server<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-spooler<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/kopano-utils<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/php-mapi<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04
All of
ubuntu/python-mapi<8.5.5-0ubuntu1+esm1
8.5.5-0ubuntu1+esm1
Ubuntu=18.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6876-1?

    The severity of USN-6876-1 is considered to be medium due to potential exposure of private information and authentication issues.

  • How do I fix USN-6876-1?

    To fix USN-6876-1, update the Kopano Core packages to version 8.7.0-7.1ubuntu10.1 or later on affected Ubuntu versions.

  • Which versions of Ubuntu are affected by USN-6876-1?

    USN-6876-1 affects Ubuntu 18.04 LTS, specifically the versions of Kopano Core prior to 8.7.0-7.1ubuntu10.1.

  • What specific vulnerabilities are addressed in USN-6876-1?

    USN-6876-1 addresses an out-of-bounds access vulnerability and an issue allowing authentication with expired passwords in Kopano Core.

  • Is there a known exploit for USN-6876-1?

    As of now, there are no public reports of an active exploit specifically targeting the vulnerabilities fixed by USN-6876-1.

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