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    CVE-2009-2698

    The udp_sendmsg function in the UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c in the Linux kernel before 2.6.19 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving the MSG_MORE flag and a UDP socket.

    Published:Aug 24, 2009
    Last Modified:Apr 23, 2026
    EPS:Aug 27, 2009
    EPSS Score:0.26117
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Suse
    Product
    Linux Enterprise Desktop
    Vendor
    Suse
    Product
    Linux Enterprise Server
    Vendor
    Vmware
    Product
    Esxi
    Vendor
    Vmware
    Product
    Vcenter Server

    Exploits

    http://www.securityfocus.com/bid/36108http://www.securityfocus.com/bid/36108https://www.exploit-db.com/exploits/9575https://github.com/xiaoxiaoleo/CVE-2009-2698https://www.exploit-db.com/exploits/9542https://www.exploit-db.com/exploits/9574

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    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://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1e0c14f49d6b393179f423abbac47f85618d3d46
    http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00008.html
    http://rhn.redhat.com/errata/RHSA-2009-1222.html
    http://rhn.redhat.com/errata/RHSA-2009-1223.html
    http://secunia.com/advisories/23073
    http://secunia.com/advisories/36430
    http://secunia.com/advisories/36510
    http://secunia.com/advisories/37105
    http://secunia.com/advisories/37298
    http://secunia.com/advisories/37471
    http://support.avaya.com/css/P8/documents/100067254
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
    http://www.openwall.com/lists/oss-security/2009/08/25/1
    http://www.redhat.com/support/errata/RHSA-2009-1233.html
    http://www.securityfocus.com/archive/1/507985/100/0/threaded
    http://www.securityfocus.com/archive/1/512019/100/0/threaded
    http://www.securityfocus.com/bid/36108
    http://www.securitytracker.com/id?1022761
    http://www.ubuntu.com/usn/USN-852-1
    http://www.vmware.com/security/advisories/VMSA-2009-0016.html
    http://www.vupen.com/english/advisories/2009/3316
    https://bugzilla.redhat.com/show_bug.cgi?id=518034
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11514
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8557
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9142
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1e0c14f49d6b393179f423abbac47f85618d3d46
    http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00008.html
    http://rhn.redhat.com/errata/RHSA-2009-1222.html
    http://rhn.redhat.com/errata/RHSA-2009-1223.html
    http://secunia.com/advisories/23073
    http://secunia.com/advisories/36430
    http://secunia.com/advisories/36510
    http://secunia.com/advisories/37105
    http://secunia.com/advisories/37298
    http://secunia.com/advisories/37471
    http://support.avaya.com/css/P8/documents/100067254
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
    http://www.openwall.com/lists/oss-security/2009/08/25/1
    http://www.redhat.com/support/errata/RHSA-2009-1233.html
    http://www.securityfocus.com/archive/1/507985/100/0/threaded
    http://www.securityfocus.com/archive/1/512019/100/0/threaded
    http://www.securityfocus.com/bid/36108
    http://www.securitytracker.com/id?1022761
    http://www.ubuntu.com/usn/USN-852-1
    http://www.vmware.com/security/advisories/VMSA-2009-0016.html
    http://www.vupen.com/english/advisories/2009/3316
    https://bugzilla.redhat.com/show_bug.cgi?id=518034
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11514
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8557
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9142

    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