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    CVE-2016-2543

    The snd_seq_ioctl_remove_events function in sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not verify FIFO assignment before proceeding with FIFO clearing, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted ioctl call.

    Published:Jan 19, 2016
    Last Modified:Apr 12, 2025
    EPS:Apr 27, 2016
    EPSS Score:0.00028
    CVSS Score:6.2

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=030e2c78d3a91dd0d27fef37e91950dde333eba1
    http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
    http://www.debian.org/security/2016/dsa-3503
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
    http://www.openwall.com/lists/oss-security/2016/01/19/1
    http://www.securityfocus.com/bid/83377
    http://www.securitytracker.com/id/1035304
    http://www.ubuntu.com/usn/USN-2929-1
    http://www.ubuntu.com/usn/USN-2929-2
    http://www.ubuntu.com/usn/USN-2930-1
    http://www.ubuntu.com/usn/USN-2930-2
    http://www.ubuntu.com/usn/USN-2930-3
    http://www.ubuntu.com/usn/USN-2931-1
    http://www.ubuntu.com/usn/USN-2932-1
    http://www.ubuntu.com/usn/USN-2967-1
    http://www.ubuntu.com/usn/USN-2967-2
    https://bugzilla.redhat.com/show_bug.cgi?id=1311554
    https://github.com/torvalds/linux/commit/030e2c78d3a91dd0d27fef37e91950dde333eba1
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=030e2c78d3a91dd0d27fef37e91950dde333eba1
    http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
    http://www.debian.org/security/2016/dsa-3503
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
    http://www.openwall.com/lists/oss-security/2016/01/19/1
    http://www.securityfocus.com/bid/83377
    http://www.securitytracker.com/id/1035304
    http://www.ubuntu.com/usn/USN-2929-1
    http://www.ubuntu.com/usn/USN-2929-2
    http://www.ubuntu.com/usn/USN-2930-1
    http://www.ubuntu.com/usn/USN-2930-2
    http://www.ubuntu.com/usn/USN-2930-3
    http://www.ubuntu.com/usn/USN-2931-1
    http://www.ubuntu.com/usn/USN-2932-1
    http://www.ubuntu.com/usn/USN-2967-1
    http://www.ubuntu.com/usn/USN-2967-2
    https://bugzilla.redhat.com/show_bug.cgi?id=1311554
    https://github.com/torvalds/linux/commit/030e2c78d3a91dd0d27fef37e91950dde333eba1

    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