CVE-2017-17740

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    CVE-2017-17740

    Published: 18 Dec 2017Last Modified: 28 Aug 2026

    Summary:

    Details: contrib/slapd-modules/nops/nops.c in OpenLDAP through 2.4.45, when both the nops module and the memberof overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation.

    References: http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html, https://kc.mcafee.com/corporate/index?page=content&id=SB10365, http://www.openldap.org/its/index.cgi/Incoming?id=8759, https://www.oracle.com/security-alerts/cpuapr2022.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    OPENLDAP_REL_ENG_2_4_45

    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