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    CVE-2019-14907

    All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).

    Published:Jan 21, 2020
    Last Modified:Jan 14, 2025
    EPS:Jan 21, 2020
    EPSS Score:0.05045
    CVSS Score:6.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Storage
    Vendor
    Samba
    Product
    Samba
    Vendor
    Synology
    Product
    Directory Server
    Vendor
    Synology
    Product
    Diskstation Manager
    Vendor
    Synology
    Product
    Router Manager
    Vendor
    Synology
    Product
    Skynas

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907
    https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
    https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
    https://security.gentoo.org/glsa/202003-52
    https://security.netapp.com/advisory/ntap-20200122-0001/
    https://usn.ubuntu.com/4244-1/
    https://www.samba.org/samba/security/CVE-2019-14907.html
    https://www.synology.com/security/advisory/Synology_SA_20_01
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907
    https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
    https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
    https://security.gentoo.org/glsa/202003-52
    https://security.netapp.com/advisory/ntap-20200122-0001/
    https://usn.ubuntu.com/4244-1/
    https://www.samba.org/samba/security/CVE-2019-14907.html
    https://www.synology.com/security/advisory/Synology_SA_20_01

    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