CVE-2013-4270

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    CVE-2013-4270

    Published: 9 Dec 2013Last Modified: 10 Apr 2026

    Summary:

    Details: The net_ctl_permissions function in net/sysctl_net.c in the Linux kernel before 3.11.5 does not properly determine uid and gid values, which allows local users to bypass intended /proc/sys/net restrictions via a crafted application.

    References: http://rhn.redhat.com/errata/RHSA-2014-0100.html, http://www.ubuntu.com/usn/USN-2049-1, https://github.com/torvalds/linux/commit/2433c8f094a008895e66f25bd1773cdb01c91d01, https://github.com/torvalds/linux/commit/2433c8f094a008895e66f25bd1773cdb01c91d01, https://bugzilla.redhat.com/show_bug.cgi?id=1027752, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2433c8f094a008895e66f25bd1773cdb01c91d01, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5

    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-2013-4270 | CVE-DB