{"cve":{"cve_id":"CVE-2009-2692","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.14749,"epss_percentile":0.96238,"epss_as_of":"2026-06-23","description":"The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.","published_at":"2009-08-14T15:00:00Z","last_modified_at":"2026-06-16T23:10:01.710000Z","cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-908"],"nvd_references":["http://www.redhat.com/support/errata/RHSA-2009-1233.html","http://secunia.com/advisories/36278","http://www.debian.org/security/2009/dsa-1865","http://rhn.redhat.com/errata/RHSA-2009-1223.html","http://www.securityfocus.com/archive/1/512019/100/0/threaded","http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.5","http://secunia.com/advisories/37298","http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0121","http://secunia.com/advisories/36430","http://secunia.com/advisories/37471","http://rhn.redhat.com/errata/RHSA-2009-1222.html","http://archives.neohapsis.com/archives/fulldisclosure/2009-08/0174.html","https://bugzilla.redhat.com/show_bug.cgi?id=516949","https://issues.rpath.com/browse/RPL-3103","http://www.vmware.com/security/advisories/VMSA-2009-0016.html","http://www.exploit-db.com/exploits/19933","http://www.vupen.com/english/advisories/2009/2272","http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html","http://www.securityfocus.com/archive/1/505751/100/0/threaded","http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e694958388c50148389b0e9b9e9e8945cf0f1b98","http://secunia.com/advisories/36289","http://www.securityfocus.com/archive/1/507985/100/0/threaded","http://secunia.com/advisories/36327","http://support.avaya.com/css/P8/documents/100067254","http://grsecurity.net/~spender/wunderbar_emporium.tgz","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11591","http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git%3Ba=commit%3Bh=c18d0fe535a73b219f960d1af3d0c264555a12e3","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11526","http://www.mandriva.com/security/advisories?name=MDVSA-2009:233","http://www.exploit-db.com/exploits/9477","http://blog.cr0.org/2009/08/linux-null-pointer-dereference-due-to.html","http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8657","http://www.openwall.com/lists/oss-security/2009/08/14/1","http://www.securityfocus.com/bid/36038","http://www.securityfocus.com/archive/1/505912/100/0/threaded","http://zenthought.org/content/file/android-root-2009-08-16-source","http://www.vupen.com/english/advisories/2009/3316","http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:05:06.960906Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"debian","vendor_name":"Debian","product_slug":"debian-linux","product_name":"debian_linux","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux-kernel","product_name":"Linux kernel","version_start":"2.4.4","version_start_inclusive":true,"version_end":"2.4.37.5","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-desktop","product_name":"enterprise_linux_desktop","version_start":"5.0","version_start_inclusive":true,"version_end":"5.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-desktop","product_name":"enterprise_linux_desktop","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-eus","product_name":"enterprise_linux_eus","version_start":"5.3","version_start_inclusive":true,"version_end":"5.3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_eus:5.3:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-eus","product_name":"enterprise_linux_eus","version_start":"4.8","version_start_inclusive":true,"version_end":"4.8","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_eus:4.8:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-server","product_name":"enterprise_linux_server","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_server:4.0:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-server","product_name":"enterprise_linux_server","version_start":"5.0","version_start_inclusive":true,"version_end":"5.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-server-aus","product_name":"enterprise_linux_server_aus","version_start":"5.3","version_start_inclusive":true,"version_end":"5.3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_server_aus:5.3:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-workstation","product_name":"enterprise_linux_workstation","version_start":"4.0","version_start_inclusive":true,"version_end":"4.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_workstation:4.0:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux-workstation","product_name":"enterprise_linux_workstation","version_start":"5.0","version_start_inclusive":true,"version_end":"5.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*"},{"vendor_slug":"suse","vendor_name":"SUSE","product_slug":"linux-enterprise-real-time","product_name":"linux_enterprise_real_time","version_start":"10","version_start_inclusive":true,"version_end":"10","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:suse:linux_enterprise_real_time:10:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"http://www.redhat.com/support/errata/RHSA-2009-1233.html","source_type":"MISC","tags":[]},{"url":"http://secunia.com/advisories/36278","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.debian.org/security/2009/dsa-1865","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://rhn.redhat.com/errata/RHSA-2009-1223.html","source_type":"MISC","tags":[]},{"url":"http://www.securityfocus.com/archive/1/512019/100/0/threaded","source_type":"MISC","tags":[]},{"url":"http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.5","source_type":"MISC","tags":[]},{"url":"http://secunia.com/advisories/37298","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0121","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://secunia.com/advisories/36430","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://secunia.com/advisories/37471","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://rhn.redhat.com/errata/RHSA-2009-1222.html","source_type":"MISC","tags":[]},{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2009-08/0174.html","source_type":"MISC","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=516949","source_type":"MISC","tags":[]},{"url":"https://issues.rpath.com/browse/RPL-3103","source_type":"MISC","tags":[]},{"url":"http://www.vmware.com/security/advisories/VMSA-2009-0016.html","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.exploit-db.com/exploits/19933","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://www.vupen.com/english/advisories/2009/2272","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.securityfocus.com/archive/1/505751/100/0/threaded","source_type":"MISC","tags":[]},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e694958388c50148389b0e9b9e9e8945cf0f1b98","source_type":"MISC","tags":[]},{"url":"http://secunia.com/advisories/36289","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.securityfocus.com/archive/1/507985/100/0/threaded","source_type":"MISC","tags":[]},{"url":"http://secunia.com/advisories/36327","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://support.avaya.com/css/P8/documents/100067254","source_type":"MISC","tags":[]},{"url":"http://grsecurity.net/~spender/wunderbar_emporium.tgz","source_type":"MISC","tags":[]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11591","source_type":"MISC","tags":[]},{"url":"http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git%3Ba=commit%3Bh=c18d0fe535a73b219f960d1af3d0c264555a12e3","source_type":"MISC","tags":[]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11526","source_type":"MISC","tags":[]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:233","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.exploit-db.com/exploits/9477","source_type":"EXPLOIT","tags":["exploit"]},{"url":"http://blog.cr0.org/2009/08/linux-null-pointer-dereference-due-to.html","source_type":"MISC","tags":[]},{"url":"http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6","source_type":"MISC","tags":[]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8657","source_type":"MISC","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2009/08/14/1","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.securityfocus.com/bid/36038","source_type":"MISC","tags":[]},{"url":"http://www.securityfocus.com/archive/1/505912/100/0/threaded","source_type":"MISC","tags":[]},{"url":"http://zenthought.org/content/file/android-root-2009-08-16-source","source_type":"MISC","tags":[]},{"url":"http://www.vupen.com/english/advisories/2009/3316","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2009-08-14T15:00:00Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-24T01:13:18.467633Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-06-24T01:13:18.467633Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-06-24T01:13:18.467633Z","label":"CVSS score revised","source":"nvd"}]}