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    CVE-2009-2406

    Stack-based buffer overflow in the parse_tag_11_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to not ensuring that the key signature length in a Tag 11 packet is compatible with the key signature buffer size.

    Published:Jul 28, 2009
    Last Modified:Apr 23, 2026
    EPS:Jul 31, 2009
    EPSS Score:0.00314
    CVSS Score:6.9

    Affected Products

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

    Exploits

    http://risesecurity.org/advisories/RISE-2009002.txthttp://risesecurity.org/advisories/RISE-2009002.txt

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6352a29305373ae6196491e6d4669f301e26492e
    http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
    http://risesecurity.org/advisories/RISE-2009002.txt
    http://secunia.com/advisories/35985
    http://secunia.com/advisories/36045
    http://secunia.com/advisories/36051
    http://secunia.com/advisories/36054
    http://secunia.com/advisories/36116
    http://secunia.com/advisories/36131
    http://secunia.com/advisories/37471
    http://www.debian.org/security/2009/dsa-1844
    http://www.debian.org/security/2009/dsa-1845
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.4
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
    http://www.redhat.com/support/errata/RHSA-2009-1193.html
    http://www.securityfocus.com/archive/1/505334/100/0/threaded
    http://www.securityfocus.com/archive/1/507985/100/0/threaded
    http://www.securityfocus.com/bid/35851
    http://www.securitytracker.com/id?1022663
    http://www.ubuntu.com/usn/usn-807-1
    http://www.vmware.com/security/advisories/VMSA-2009-0016.html
    http://www.vupen.com/english/advisories/2009/2041
    http://www.vupen.com/english/advisories/2009/3316
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10072
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8246
    https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html
    https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.html
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6352a29305373ae6196491e6d4669f301e26492e
    http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
    http://risesecurity.org/advisories/RISE-2009002.txt
    http://secunia.com/advisories/35985
    http://secunia.com/advisories/36045
    http://secunia.com/advisories/36051
    http://secunia.com/advisories/36054
    http://secunia.com/advisories/36116
    http://secunia.com/advisories/36131
    http://secunia.com/advisories/37471
    http://www.debian.org/security/2009/dsa-1844
    http://www.debian.org/security/2009/dsa-1845
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.4
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
    http://www.redhat.com/support/errata/RHSA-2009-1193.html
    http://www.securityfocus.com/archive/1/505334/100/0/threaded
    http://www.securityfocus.com/archive/1/507985/100/0/threaded
    http://www.securityfocus.com/bid/35851
    http://www.securitytracker.com/id?1022663
    http://www.ubuntu.com/usn/usn-807-1
    http://www.vmware.com/security/advisories/VMSA-2009-0016.html
    http://www.vupen.com/english/advisories/2009/2041
    http://www.vupen.com/english/advisories/2009/3316
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10072
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8246
    https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html
    https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.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