UBUNTU-CVE-2018-1066

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    UBUNTU-CVE-2018-1066

    Published: 2 Mar 2018Last Modified: 26 Aug 2026
    Upstream:
    CVE-2018-1066

    Summary:

    Details: The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allows an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response is mishandled during session recovery.

    References: https://ubuntu.com/security/CVE-2018-1066, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cabfb3680f78981d26c078a26e5c748531257ebb, https://bugzilla.redhat.com/show_bug.cgi?id=1539599, https://github.com/torvalds/linux/commit/cabfb3680f78981d26c078a26e5c748531257ebb, https://patchwork.kernel.org/patch/10187633/, https://ubuntu.com/security/notices/USN-3880-1, https://ubuntu.com/security/notices/USN-3880-2, https://www.cve.org/CVERecord?id=CVE-2018-1066

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-165.215

    Affected versions

    3.11.0-12.19

    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