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    CVE-2011-2695

    Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer.

    Published:Jun 3, 2011
    Last Modified:Apr 11, 2025
    EPS:Jul 28, 2011
    EPSS Score:0.00067
    CVSS Score:4.9

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    http://www.spinics.net/lists/linux-ext4/msg25697.htmlhttp://www.spinics.net/lists/linux-ext4/msg25697.html

    Common Weakness Enumeration

    CWE-193 Off-by-one Error

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6
    http://secunia.com/advisories/45193
    http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5
    http://www.openwall.com/lists/oss-security/2011/07/15/7
    http://www.openwall.com/lists/oss-security/2011/07/15/8
    http://www.spinics.net/lists/linux-ext4/msg25697.html
    https://bugzilla.redhat.com/show_bug.cgi?id=722557
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6
    http://secunia.com/advisories/45193
    http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5
    http://www.openwall.com/lists/oss-security/2011/07/15/7
    http://www.openwall.com/lists/oss-security/2011/07/15/8
    http://www.spinics.net/lists/linux-ext4/msg25697.html
    https://bugzilla.redhat.com/show_bug.cgi?id=722557

    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