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    CVE-2011-1093

    The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet.

    Published:Mar 2, 2011
    Last Modified:Apr 11, 2025
    EPS:Jul 18, 2011
    EPSS Score:0.01222
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://downloads.avaya.com/css/P8/documents/100145416
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=720dc34bbbe9493c7bd48b2243058b4e447a929d
    http://openwall.com/lists/oss-security/2011/03/08/19
    http://openwall.com/lists/oss-security/2011/03/08/4
    http://rhn.redhat.com/errata/RHSA-2011-0833.html
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
    http://www.securityfocus.com/bid/46793
    https://bugzilla.redhat.com/show_bug.cgi?id=682954
    http://downloads.avaya.com/css/P8/documents/100145416
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=720dc34bbbe9493c7bd48b2243058b4e447a929d
    http://openwall.com/lists/oss-security/2011/03/08/19
    http://openwall.com/lists/oss-security/2011/03/08/4
    http://rhn.redhat.com/errata/RHSA-2011-0833.html
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
    http://www.securityfocus.com/bid/46793
    https://bugzilla.redhat.com/show_bug.cgi?id=682954

    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