CVE-2018-20511

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    CVE-2018-20511

    Published: 27 Dec 2018Last Modified: 15 Mar 2026

    Summary:

    Details: An issue was discovered in the Linux kernel before 4.18.11. The ipddp_ioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel address information by leveraging CAP_NET_ADMIN to read the ipddp_route dev and next fields via an SIOCFINDIPDDPRT ioctl call.

    References: https://usn.ubuntu.com/4118-1/, https://usn.ubuntu.com/4094-1/, https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11, http://www.securityfocus.com/bid/106347, https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html, https://lkml.org/lkml/2018/9/27/480, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfae5741275473a23a7ed5756c7b6efacc9d, https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9d

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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