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  • Bind vulnerabilities

    From bugz_ubuntu@21:4/110 to Ubuntu Users on Wednesday, June 17, 2020 20:10:04
    bind9 vulnerabilities

    A security issue affects these releases of Ubuntu and its
    derivatives:

    * Ubuntu 20.04 LTS

    Summary

    Bind could be made to crash if it received specially crafted
    network traffic.

    Software Description

    * bind9 - Internet Domain Name Server

    Details

    It was discovered that Bind incorrectly handled large responses
    during zone transfers. A remote attacker could possibly use this
    issue to cause Bind to crash, resulting in a denial of service.
    (CVE-2020-8618)

    It was discovered that Bind incorrectly handled certain asterisk
    characters in zone files. A remote attacker could possibly use
    this issue to cause Bind to crash, resulting in a denial of
    service. (CVE-2020-8619)

    Update instructions

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

    Ubuntu 20.04 LTS
    bind9 - 1:9.16.1-0ubuntu2.2

    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.

    References

    * CVE-2020-8618
    * CVE-2020-8619

    --- Mystic BBS v1.12 A45 (Linux/64)
    * Origin: BZ&BZ BBS (21:4/110)
  • From bugz_ubuntu@21:4/110 to Ubuntu Users on Friday, August 21, 2020 12:10:06
    bind9 vulnerabilities

    A security issue affects these releases of Ubuntu and its
    derivatives:

    * Ubuntu 20.04 LTS
    * Ubuntu 18.04 LTS
    * Ubuntu 16.04 LTS

    Summary

    Several security issues were fixed in Bind.

    Software Description

    * bind9 - Internet Domain Name Server

    Details

    Emanuel Almeida discovered that Bind incorrectly handled certain
    TCP payloads. A remote attacker could possibly use this issue to
    cause Bind to crash, resulting in a denial of service. This issue
    only affected Ubuntu 20.04 LTS. (CVE-2020-8620)

    Joseph Gullo discovered that Bind incorrectly handled QNAME
    minimization when used in certain configurations. A remote
    attacker could possibly use this issue to cause Bind to crash,
    resulting in a denial of service. This issue only affected Ubuntu
    20.04 LTS. (CVE-2020-8621)

    Dave Feldman, Jeff Warren, and Joel Cunningham discovered that
    Bind incorrectly handled certain truncated responses to a
    TSIG-signed request. A remote attacker could possibly use this
    issue to cause Bind to crash, resulting in a denial of service.
    (CVE-2020-8622)

    Lyu Chiy discovered that Bind incorrectly handled certain queries.
    A remote attacker could possibly use this issue to cause Bind to
    crash, resulting in a denial of service. (CVE-2020-8623)

    Joop Boonen discovered that Bind incorrectly handled certain
    subdomain update-policy rules. A remote attacker granted
    privileges to change certain parts of a zone could use this issue
    to change other contents of the zone, contrary to expectations.
    This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
    (CVE-2020-8624)

    Update instructions

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

    Ubuntu 20.04 LTS
    bind9 - 1:9.16.1-0ubuntu2.3

    Ubuntu 18.04 LTS
    bind9 - 1:9.11.3+dfsg-1ubuntu1.13

    Ubuntu 16.04 LTS
    bind9 - 1:9.10.3.dfsg.P4-8ubuntu1.17

    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.

    References

    * CVE-2020-8620
    * CVE-2020-8621
    * CVE-2020-8622
    * CVE-2020-8623
    * CVE-2020-8624

    --- Mystic BBS v1.12 A45 (Linux/64)
    * Origin: BZ&BZ BBS (21:4/110)