USN-4737-1

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    USN-4737-1

    Published: 18 Feb 2021Last Modified: 22 Apr 2026

    Summary: bind9 vulnerability

    Details: It was discovered that Bind incorrectly handled GSSAPI security policy negotiation. A remote attacker could use this issue to cause Bind to crash, resulting in a denial of service, or possibly execute arbitrary code. In the default installation, attackers would be isolated by the Bind AppArmor profile.

    References: https://ubuntu.com/security/notices/USN-4737-1, https://ubuntu.com/security/CVE-2020-8625

    Affected packages

    Package

    Name: bind9

    Purl: pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.18?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:9.10.3.dfsg.P4-8ubuntu1.18

    Affected versions

    1:9.9.5.dfsg-11ubuntu1
    1:9.9.5.dfsg-12
    1:9.9.5.dfsg-12.1
    1:9.9.5.dfsg-12.1ubuntu1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-4737-1 | CVE-DB