CVE-2015-7540

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    CVE-2015-7540

    Published: 29 Dec 2015Last Modified: 10 Apr 2026

    Summary:

    Details: The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful ASN.1 memory allocation, which allows remote attackers to cause a denial of service (memory consumption and daemon crash) via crafted packets.

    References: http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html, http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html, http://www.debian.org/security/2016/dsa-3433, http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html, http://www.securityfocus.com/bid/79736, http://www.securitytracker.com/id/1034492, http://www.ubuntu.com/usn/USN-2855-1, http://www.ubuntu.com/usn/USN-2855-2, https://bugzilla.redhat.com/show_bug.cgi?id=1288451, https://security.gentoo.org/glsa/201612-47, https://www.samba.org/samba/security/CVE-2015-7540.html, http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html, https://bugzilla.redhat.com/show_bug.cgi?id=1288451, https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=530d50a1abdcdf4d1775652d4c456c1274d83d8d, https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=9d989c9dd7a5b92d0c5d65287935471b83b6e884

    Affected packages

    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-2015-7540 | CVE-DB