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    CVE-2009-4027

    Race condition in the mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (system crash) via a Delete Block ACK (aka DELBA) packet that triggers a certain state change in the absence of an aggregation session.

    Published:Nov 30, 2009
    Last Modified:Apr 23, 2026
    EPS:Dec 2, 2009
    EPSS Score:0.01135
    CVSS Score:7.1

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    No exploit reference

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7
    http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
    http://secunia.com/advisories/38017
    http://secunia.com/advisories/38492
    http://www.debian.org/security/2010/dsa-1996
    http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091201.gz
    http://www.redhat.com/support/errata/RHSA-2010-0380.html
    http://www.securityfocus.com/bid/37170
    http://www.ubuntu.com/usn/usn-864-1
    https://bugzilla.redhat.com/show_bug.cgi?id=541149
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11583
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7
    http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
    http://secunia.com/advisories/38017
    http://secunia.com/advisories/38492
    http://www.debian.org/security/2010/dsa-1996
    http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091201.gz
    http://www.redhat.com/support/errata/RHSA-2010-0380.html
    http://www.securityfocus.com/bid/37170
    http://www.ubuntu.com/usn/usn-864-1
    https://bugzilla.redhat.com/show_bug.cgi?id=541149
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11583

    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