UBUNTU-CVE-2023-36054

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    UBUNTU-CVE-2023-36054

    Published: 7 Aug 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2023-36054

    Summary:

    Details: lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.

    References: https://ubuntu.com/security/CVE-2023-36054, https://web.mit.edu/kerberos/www/advisories/, https://github.com/krb5/krb5/compare/krb5-1.20.1-final...krb5-1.20.2-final, https://github.com/krb5/krb5/compare/krb5-1.21-final...krb5-1.21.1-final, https://ubuntu.com/security/notices/USN-6467-1, https://ubuntu.com/security/notices/USN-6467-2, https://www.cve.org/CVERecord?id=CVE-2023-36054

    Affected packages

    Package

    Name: krb5

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu5.4+esm4?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.12+dfsg-2ubuntu5.4+esm4

    Affected versions

    1.10.1+dfsg-6.1ubuntu1

    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
    UBUNTU-CVE-2023-36054 | CVE-DB