CVE-2015-2922

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    CVE-2015-2922

    Published: 27 May 2015Last Modified: 10 Apr 2026

    Summary:

    Details: The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in the Linux kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

    References: http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155804.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155854.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155908.html, http://rhn.redhat.com/errata/RHSA-2015-1221.html, http://rhn.redhat.com/errata/RHSA-2015-1534.html, http://rhn.redhat.com/errata/RHSA-2015-1564.html, http://www.debian.org/security/2015/dsa-3237, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.6, http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html, http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.6, http://www.openwall.com/lists/oss-security/2015/04/04/2, https://github.com/torvalds/linux/commit/6fd99094de2b83d1d4c8457f2c83483b2828e75a, https://bugzilla.redhat.com/show_bug.cgi?id=1203712, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6fd99094de2b83d1d4c8457f2c83483b2828e75a, http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html, http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html, http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html, http://www.securityfocus.com/bid/74315, http://www.securitytracker.com/id/1032417

    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-2015-2922 | CVE-DB