USN-6421-1

    Dashboard / Vulnerabilities / USN-6421-1

    USN-6421-1

    Published: 9 Oct 2023Last Modified: 29 Jun 2026

    Summary: bind9 vulnerability

    Details: It was discovered that Bind incorrectly handled certain control channel messages. A remote attacker with access to the control channel could possibly use this issue to cause Bind to crash, resulting in a denial of service.

    References: https://ubuntu.com/security/notices/USN-6421-1, https://ubuntu.com/security/CVE-2023-3341

    Affected packages

    Package

    Name: bind9

    Purl: pkg:deb/ubuntu/bind9?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:9.9.5.dfsg-3ubuntu0.19+esm11

    Affected versions

    1:9.9.3.dfsg.P2-4ubuntu1
    1:9.9.3.dfsg.P2-4ubuntu2
    1:9.9.3.dfsg.P2-4ubuntu3
    1:9.9.5.dfsg-2
    1:9.9.5.dfsg-3
    1:9.9.5.dfsg-3ubuntu0.1
    1:9.9.5.dfsg-3ubuntu0.2
    1:9.9.5.dfsg-3ubuntu0.3
    1:9.9.5.dfsg-3ubuntu0.4
    1:9.9.5.dfsg-3ubuntu0.5
    1:9.9.5.dfsg-3ubuntu0.6
    1:9.9.5.dfsg-3ubuntu0.7
    1:9.9.5.dfsg-3ubuntu0.8
    1:9.9.5.dfsg-3ubuntu0.9
    1:9.9.5.dfsg-3ubuntu0.10
    1:9.9.5.dfsg-3ubuntu0.11
    1:9.9.5.dfsg-3ubuntu0.12
    1:9.9.5.dfsg-3ubuntu0.13
    1:9.9.5.dfsg-3ubuntu0.14
    1:9.9.5.dfsg-3ubuntu0.15
    1:9.9.5.dfsg-3ubuntu0.16
    1:9.9.5.dfsg-3ubuntu0.17
    1:9.9.5.dfsg-3ubuntu0.18
    1:9.9.5.dfsg-3ubuntu0.19
    1:9.9.5.dfsg-3ubuntu0.19+esm1
    1:9.9.5.dfsg-3ubuntu0.19+esm2
    1:9.9.5.dfsg-3ubuntu0.19+esm3
    1:9.9.5.dfsg-3ubuntu0.19+esm4
    1:9.9.5.dfsg-3ubuntu0.19+esm5
    1:9.9.5.dfsg-3ubuntu0.19+esm6
    1:9.9.5.dfsg-3ubuntu0.19+esm7
    1:9.9.5.dfsg-3ubuntu0.19+esm9
    1:9.9.5.dfsg-3ubuntu0.19+esm10

    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-6421-1 | CVE-DB