UBUNTU-CVE-2017-2671

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    UBUNTU-CVE-2017-2671

    Published: 5 Apr 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-2671
    Aliases:
    USN-3312-1
    USN-3312-2
    USN-3314-1

    Summary:

    Details: The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.

    References: https://ubuntu.com/security/CVE-2017-2671, http://www.openwall.com/lists/oss-security/2017/03/24/6, http://openwall.com/lists/oss-security/2017/04/04/8, https://github.com/danieljiang0415/android_kernel_crash_poc, https://twitter.com/danieljiang0415/status/845116665184497664, https://ubuntu.com/security/notices/USN-3314-1, https://ubuntu.com/security/notices/USN-3312-1, https://ubuntu.com/security/notices/USN-3312-2, https://ubuntu.com/security/notices/USN-3361-1, https://ubuntu.com/security/notices/USN-3754-1, https://www.cve.org/CVERecord?id=CVE-2017-2671

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-157.207

    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