USN-6467-2

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    USN-6467-2

    Published: 6 Nov 2023Last Modified: 27 Apr 2026

    Summary: krb5 vulnerability

    Details: USN-6467-1 fixed a vulnerability in Kerberos. This update provides the corresponding update for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 23.04. Original advisory details: Robert Morris discovered that Kerberos did not properly handle memory access when processing RPC data through kadmind, which could lead to the freeing of uninitialized memory. An authenticated remote attacker could possibly use this issue to cause kadmind to crash, resulting in a denial of service.

    References: https://ubuntu.com/security/notices/USN-6467-2, https://ubuntu.com/security/CVE-2023-36054

    Affected packages

    Package

    Name: krb5

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.17-6ubuntu4.4

    Affected versions

    1.17-6

    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-6467-2 | CVE-DB