CVE-2017-18017

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    CVE-2017-18017

    Published: 3 Jan 2018Last Modified: 2 Apr 2026

    Summary:

    Details: The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action.

    References: http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00038.html, http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00030.html, http://lists.opensuse.org/opensuse-security-announce/2018-04/msg00014.html, https://support.f5.com/csp/article/K18352029, http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00047.html, http://www.securityfocus.com/bid/102367, https://access.redhat.com/errata/RHSA-2018:1170, http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00013.html, http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00067.html, http://www.ubuntu.com/usn/USN-3583-1, https://lkml.org/lkml/2017/4/2/13, https://usn.ubuntu.com/3583-1/, https://www.debian.org/security/2018/dsa-4187, http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00008.html, http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00070.html, https://access.redhat.com/errata/RHSA-2018:0676, https://access.redhat.com/errata/RHSA-2018:1319, https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html, http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00015.html, http://www.ubuntu.com/usn/USN-3583-2, https://access.redhat.com/errata/RHSA-2018:1130, https://www.arista.com/en/support/advisories-notices/security-advisories/4577-security-advisory-34, http://lists.opensuse.org/opensuse-security-announce/2018-03/msg00072.html, https://access.redhat.com/errata/RHSA-2018:1062, https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0, https://usn.ubuntu.com/3583-2/, https://security.netapp.com/advisory/ntap-20250103-0010/, https://access.redhat.com/errata/RHSA-2018:1737, https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.36, https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1739765, https://github.com/torvalds/linux/commit/2638fd0f92d4397884fd991d8f4925cb3f081901, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901, http://patchwork.ozlabs.org/patch/746618/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- c470abd4fde40ea6a0846a2beab642a578c0b8cd
    Fixed -a351e9b9fc24e982ec2f0e76379a49826036da12

    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