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    CVE-2011-2491

    The Network Lock Manager (NLM) protocol implementation in the NFS client functionality in the Linux kernel before 3.0 allows local users to cause a denial of service (system hang) via a LOCK_UN flock system call.

    Published:May 31, 2011
    Last Modified:Apr 11, 2025
    EPS:Mar 1, 2013
    EPSS Score:0.0005
    CVSS Score:4.9

    Affected Products

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

    Exploits

    No exploit reference

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    References

    http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0b760113a3a155269a3fba93a409c640031dd68f
    http://rhn.redhat.com/errata/RHSA-2011-1212.html
    http://www.openwall.com/lists/oss-security/2011/06/23/6
    https://bugzilla.redhat.com/show_bug.cgi?id=709393
    https://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68f
    http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0b760113a3a155269a3fba93a409c640031dd68f
    http://rhn.redhat.com/errata/RHSA-2011-1212.html
    http://www.openwall.com/lists/oss-security/2011/06/23/6
    https://bugzilla.redhat.com/show_bug.cgi?id=709393
    https://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68f

    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