DEBIAN-CVE-2020-27840

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    DEBIAN-CVE-2020-27840

    Published: 12 May 2021Last Modified: 11 Sept 2026
    Upstream:
    CVE-2020-27840

    Summary:

    Details: A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.

    References: https://security-tracker.debian.org/tracker/CVE-2020-27840

    Affected packages

    Package

    Name: samba

    Purl: pkg:deb/debian/samba?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:4.13.13+dfsg-1

    Affected versions

    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
    DEBIAN-CVE-2020-27840 | CVE-DB