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    CVE-2009-3889

    The dbg_lvl file for the megaraid_sas driver in the Linux kernel before 2.6.27 has world-writable permissions, which allows local users to change the (1) behavior and (2) logging level of the driver by modifying this file.

    Published:Sep 28, 2009
    Last Modified:Apr 23, 2026
    EPS:Nov 16, 2009
    EPSS Score:0.00091
    CVSS Score:6.6

    Affected Products

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

    Exploits

    https://bugzilla.redhat.com/show_bug.cgi?id=526068https://bugzilla.redhat.com/show_bug.cgi?id=526068

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-80922 — In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Allow zero as a random…
    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=66dca9b8c50b5e59d3bea8b21cee5c6dae6c9c46
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
    http://osvdb.org/60202
    http://secunia.com/advisories/37909
    http://support.avaya.com/css/P8/documents/100073666
    http://www.debian.org/security/2010/dsa-2005
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27
    http://www.openwall.com/lists/oss-security/2009/11/13/1
    http://www.openwall.com/lists/oss-security/2009/11/13/4
    http://www.securityfocus.com/bid/37019
    http://www.ubuntu.com/usn/usn-864-1
    https://bugzilla.redhat.com/show_bug.cgi?id=526068
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11018
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7163
    https://rhn.redhat.com/errata/RHSA-2010-0046.html
    https://rhn.redhat.com/errata/RHSA-2010-0095.html
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=66dca9b8c50b5e59d3bea8b21cee5c6dae6c9c46
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
    http://osvdb.org/60202
    http://secunia.com/advisories/37909
    http://support.avaya.com/css/P8/documents/100073666
    http://www.debian.org/security/2010/dsa-2005
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27
    http://www.openwall.com/lists/oss-security/2009/11/13/1
    http://www.openwall.com/lists/oss-security/2009/11/13/4
    http://www.securityfocus.com/bid/37019
    http://www.ubuntu.com/usn/usn-864-1
    https://bugzilla.redhat.com/show_bug.cgi?id=526068
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11018
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7163
    https://rhn.redhat.com/errata/RHSA-2010-0046.html
    https://rhn.redhat.com/errata/RHSA-2010-0095.html

    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