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    CVE-2009-2904

    A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership.

    Published:Sep 30, 2009
    Last Modified:Apr 23, 2026
    EPS:Oct 1, 2009
    EPSS Score:0.00039
    CVSS Score:6.9

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Openbsd
    Product
    Openssh
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.fedoraproject.org/pipermail/package-announce/2010-March/038214.html
    http://lists.vmware.com/pipermail/security-announce/2010/000082.html
    http://osvdb.org/58495
    http://secunia.com/advisories/38794
    http://secunia.com/advisories/38834
    http://secunia.com/advisories/39182
    http://www.securityfocus.com/bid/36552
    http://www.vupen.com/english/advisories/2010/0528
    https://bugzilla.redhat.com/show_bug.cgi?id=522141
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9862
    https://rhn.redhat.com/errata/RHSA-2009-1470.html
    http://lists.fedoraproject.org/pipermail/package-announce/2010-March/038214.html
    http://lists.vmware.com/pipermail/security-announce/2010/000082.html
    http://osvdb.org/58495
    http://secunia.com/advisories/38794
    http://secunia.com/advisories/38834
    http://secunia.com/advisories/39182
    http://www.securityfocus.com/bid/36552
    http://www.vupen.com/english/advisories/2010/0528
    https://bugzilla.redhat.com/show_bug.cgi?id=522141
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9862
    https://rhn.redhat.com/errata/RHSA-2009-1470.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