CVE-2023-5568

    Dashboard / Vulnerabilities / CVE-2023-5568

    CVE-2023-5568

    Published: 24 Oct 2023Last Modified: 28 Oct 2026

    Summary: Samba: heap buffer overflow with freshness tokens in the heimdal kdc

    Details: A heap-based Buffer Overflow flaw was discovered in Samba. It could allow a remote, authenticated attacker to exploit this vulnerability to cause a denial of service.

    References: https://access.redhat.com/downloads/content/package-browser/, https://www.samba.org/samba/history/samba-4.19.2.html, https://access.redhat.com/security/cve/CVE-2023-5568, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5568.json, https://nvd.nist.gov/vuln/detail/CVE-2023-5568, https://security.netapp.com/advisory/ntap-20231124-0007/, https://bugzilla.redhat.com/show_bug.cgi?id=2245174, https://bugzilla.samba.org/show_bug.cgi?id=15491

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -5b54d9e2be82545d9401ce474a39c12e6df6901f

    Affected versions

    samba-4.19.0
    samba-4.19.0rc4
    samba-4.19.0rc3
    samba-4.19.0rc2
    samba-4.19.0rc1

    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
    CVE-2023-5568 | CVE-DB