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    CVE-2009-2906

    smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a denial of service (infinite loop) via an unanticipated oplock break notification reply packet.

    Published:Oct 1, 2009
    Last Modified:Apr 23, 2026
    EPS:Oct 7, 2009
    EPSS Score:0.00397
    CVSS Score:4

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Extras
    Vendor
    Samba
    Product
    Samba

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html
    http://news.samba.org/releases/3.0.37/
    http://news.samba.org/releases/3.2.15/
    http://news.samba.org/releases/3.3.8/
    http://news.samba.org/releases/3.4.2/
    http://osvdb.org/58519
    http://samba.org/samba/security/CVE-2009-2906.html
    http://secunia.com/advisories/36893
    http://secunia.com/advisories/36918
    http://secunia.com/advisories/36937
    http://secunia.com/advisories/36953
    http://secunia.com/advisories/37428
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.561439
    http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021111.1-1
    http://support.apple.com/kb/HT4077
    http://wiki.rpath.com/Advisories:rPSA-2009-0145
    http://www.securityfocus.com/archive/1/507856/100/0/threaded
    http://www.securityfocus.com/bid/36573
    http://www.securitytracker.com/id?1022976
    http://www.ubuntu.com/usn/USN-839-1
    http://www.vupen.com/english/advisories/2009/2810
    https://exchange.xforce.ibmcloud.com/vulnerabilities/53575
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7090
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9944
    https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00095.html
    https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00098.html
    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html
    http://news.samba.org/releases/3.0.37/
    http://news.samba.org/releases/3.2.15/
    http://news.samba.org/releases/3.3.8/
    http://news.samba.org/releases/3.4.2/
    http://osvdb.org/58519
    http://samba.org/samba/security/CVE-2009-2906.html
    http://secunia.com/advisories/36893
    http://secunia.com/advisories/36918
    http://secunia.com/advisories/36937
    http://secunia.com/advisories/36953
    http://secunia.com/advisories/37428
    http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.561439
    http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021111.1-1
    http://support.apple.com/kb/HT4077
    http://wiki.rpath.com/Advisories:rPSA-2009-0145
    http://www.securityfocus.com/archive/1/507856/100/0/threaded
    http://www.securityfocus.com/bid/36573
    http://www.securitytracker.com/id?1022976
    http://www.ubuntu.com/usn/USN-839-1
    http://www.vupen.com/english/advisories/2009/2810
    https://exchange.xforce.ibmcloud.com/vulnerabilities/53575
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7090
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9944
    https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00095.html
    https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00098.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