{"api_version":"1","generated_at":"2026-04-23T06:19:06+00:00","cve":"CVE-2007-1856","urls":{"html":"https://cve.report/CVE-2007-1856","api":"https://cve.report/api/cve/CVE-2007-1856.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2007-1856","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2007-1856"},"summary":{"title":"CVE-2007-1856","description":"Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cron failure) by creating hard links, which results in a failed st_nlink check in database.c.","state":"PUBLISHED","assigner":"redhat","published_at":"2007-04-18 03:19:00","updated_at":"2026-04-23 00:35:47"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"2.1","severity":"","vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:P","baseScore":2.1,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://secunia.com/advisories/24995","name":"http://secunia.com/advisories/24995","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"SUSE Update for Multiple Packages - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/23520","name":"http://www.securityfocus.com/bid/23520","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Vixie Cron ST_Nlink Check Local Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"http://secunia.com/advisories/25723","name":"http://secunia.com/advisories/25723","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Avaya Products vixie-cron Local Denial of Service - Secunia Advisories - Vulnerability Intelligence - Secunia.com","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/26909","name":"http://secunia.com/advisories/26909","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"VMware ESX Server Multiple Security Updates - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html","name":"http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"[Full-Disclosure] Mailing List Charter","mime":"text/html","httpstatus":"404","archivestatus":"404"},{"url":"http://www.securitytracker.com/id?1018081","name":"http://www.securitytracker.com/id?1018081","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Vixie Cron Installation Permissions on Some Platforms Let Local Users Deny Service - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"http://support.avaya.com/elmodocs2/security/ASA-2007-261.htm","name":"http://support.avaya.com/elmodocs2/security/ASA-2007-261.htm","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"ASA-2007-261 (RHSA-2007-0345)","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://rhn.redhat.com/errata/RHSA-2007-0345.html","name":"http://rhn.redhat.com/errata/RHSA-2007-0345.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"rhn.redhat.com | Red Hat Support","mime":"text/html","httpstatus":"-1","archivestatus":"200"},{"url":"http://secunia.com/advisories/27706","name":"http://secunia.com/advisories/27706","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Gentoo update for vmware - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/27886","name":"http://secunia.com/advisories/27886","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Mandriva update for vixie-cron - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/25321","name":"http://secunia.com/advisories/25321","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Red Hat update for vixie-cron - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.novell.com/linux/security/advisories/2007_007_suse.html","name":"http://www.novell.com/linux/security/advisories/2007_007_suse.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Security Announcement","mime":"text/html","httpstatus":"404","archivestatus":"200"},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:234","name":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:234","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Support / Security / Advisories /  / MDKSA-2007:234 | Mandriva","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11463","name":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11463","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Repository  /  Oval Repository","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/24905","name":"http://secunia.com/advisories/24905","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Gentoo update for vixie-cron - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.vupen.com/english/advisories/2007/3229","name":"http://www.vupen.com/english/advisories/2007/3229","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Webmail : Solution de messagerie professionnelle - OVHcloud- OVH","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://security.gentoo.org/glsa/glsa-200704-11.xml","name":"http://security.gentoo.org/glsa/glsa-200704-11.xml","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Gentoo Linux Documentation\n--\n  Vixie Cron: Denial of Service","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2007-1856","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-1856","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2007","cve_id":"1856","vulnerable":"0","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"gentoo","cpe5":"linux","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2007","cve_id":"1856","vulnerable":"1","versionEndIncluding":"4.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"paul_vixie","cpe5":"vixie_cron","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-07T13:13:41.102Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"20070920 VMSA-2007-0006 Critical security updates for all supported versions of VMware ESX Server, VMware Server, VMware Workstation, VMware ACE, and VMware Player","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html"},{"name":"27886","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/27886"},{"name":"ADV-2007-3229","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"],"url":"http://www.vupen.com/english/advisories/2007/3229"},{"name":"SUSE-SR:2007:007","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"],"url":"http://www.novell.com/linux/security/advisories/2007_007_suse.html"},{"name":"1018081","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"],"url":"http://www.securitytracker.com/id?1018081"},{"name":"24995","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/24995"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://support.avaya.com/elmodocs2/security/ASA-2007-261.htm"},{"name":"GLSA-200704-11","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"],"url":"http://security.gentoo.org/glsa/glsa-200704-11.xml"},{"name":"25321","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/25321"},{"name":"oval:org.mitre.oval:def:11463","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"],"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11463"},{"name":"25723","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/25723"},{"name":"MDKSA-2007:234","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"],"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:234"},{"name":"26909","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/26909"},{"name":"23520","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/23520"},{"name":"27706","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/27706"},{"name":"RHSA-2007:0345","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"http://rhn.redhat.com/errata/RHSA-2007-0345.html"},{"name":"24905","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/24905"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2007-04-16T00:00:00.000Z","descriptions":[{"lang":"en","value":"Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cron failure) by creating hard links, which results in a failed st_nlink check in database.c."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-10-10T00:57:01.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"name":"20070920 VMSA-2007-0006 Critical security updates for all supported versions of VMware ESX Server, VMware Server, VMware Workstation, VMware ACE, and VMware Player","tags":["mailing-list","x_refsource_FULLDISC"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html"},{"name":"27886","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/27886"},{"name":"ADV-2007-3229","tags":["vdb-entry","x_refsource_VUPEN"],"url":"http://www.vupen.com/english/advisories/2007/3229"},{"name":"SUSE-SR:2007:007","tags":["vendor-advisory","x_refsource_SUSE"],"url":"http://www.novell.com/linux/security/advisories/2007_007_suse.html"},{"name":"1018081","tags":["vdb-entry","x_refsource_SECTRACK"],"url":"http://www.securitytracker.com/id?1018081"},{"name":"24995","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/24995"},{"tags":["x_refsource_CONFIRM"],"url":"http://support.avaya.com/elmodocs2/security/ASA-2007-261.htm"},{"name":"GLSA-200704-11","tags":["vendor-advisory","x_refsource_GENTOO"],"url":"http://security.gentoo.org/glsa/glsa-200704-11.xml"},{"name":"25321","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/25321"},{"name":"oval:org.mitre.oval:def:11463","tags":["vdb-entry","signature","x_refsource_OVAL"],"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11463"},{"name":"25723","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/25723"},{"name":"MDKSA-2007:234","tags":["vendor-advisory","x_refsource_MANDRIVA"],"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:234"},{"name":"26909","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/26909"},{"name":"23520","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/23520"},{"name":"27706","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/27706"},{"name":"RHSA-2007:0345","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"http://rhn.redhat.com/errata/RHSA-2007-0345.html"},{"name":"24905","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/24905"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"secalert@redhat.com","ID":"CVE-2007-1856","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cron failure) by creating hard links, which results in a failed st_nlink check in database.c."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"20070920 VMSA-2007-0006 Critical security updates for all supported versions of VMware ESX Server, VMware Server, VMware Workstation, VMware ACE, and VMware Player","refsource":"FULLDISC","url":"http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html"},{"name":"27886","refsource":"SECUNIA","url":"http://secunia.com/advisories/27886"},{"name":"ADV-2007-3229","refsource":"VUPEN","url":"http://www.vupen.com/english/advisories/2007/3229"},{"name":"SUSE-SR:2007:007","refsource":"SUSE","url":"http://www.novell.com/linux/security/advisories/2007_007_suse.html"},{"name":"1018081","refsource":"SECTRACK","url":"http://www.securitytracker.com/id?1018081"},{"name":"24995","refsource":"SECUNIA","url":"http://secunia.com/advisories/24995"},{"name":"http://support.avaya.com/elmodocs2/security/ASA-2007-261.htm","refsource":"CONFIRM","url":"http://support.avaya.com/elmodocs2/security/ASA-2007-261.htm"},{"name":"GLSA-200704-11","refsource":"GENTOO","url":"http://security.gentoo.org/glsa/glsa-200704-11.xml"},{"name":"25321","refsource":"SECUNIA","url":"http://secunia.com/advisories/25321"},{"name":"oval:org.mitre.oval:def:11463","refsource":"OVAL","url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11463"},{"name":"25723","refsource":"SECUNIA","url":"http://secunia.com/advisories/25723"},{"name":"MDKSA-2007:234","refsource":"MANDRIVA","url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:234"},{"name":"26909","refsource":"SECUNIA","url":"http://secunia.com/advisories/26909"},{"name":"23520","refsource":"BID","url":"http://www.securityfocus.com/bid/23520"},{"name":"27706","refsource":"SECUNIA","url":"http://secunia.com/advisories/27706"},{"name":"RHSA-2007:0345","refsource":"REDHAT","url":"http://rhn.redhat.com/errata/RHSA-2007-0345.html"},{"name":"24905","refsource":"SECUNIA","url":"http://secunia.com/advisories/24905"}]}}}},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2007-1856","datePublished":"2007-04-18T02:20:00.000Z","dateReserved":"2007-04-04T00:00:00.000Z","dateUpdated":"2024-08-07T13:13:41.102Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2007-04-18 03:19:00","lastModifiedDate":"2026-04-23 00:35:47","problem_types":["NVD-CWE-Other","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:P","baseScore":2.1,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:*","matchCriteriaId":"647BA336-5538-4972-9271-383A0EC9378E"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:paul_vixie:vixie_cron:*:*:*:*:*:*:*:*","versionEndIncluding":"4.1","matchCriteriaId":"FA725861-F942-40C3-8409-018FA7C25C4F"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2007","CveId":"1856","Ordinal":"1","Title":"CVE-2007-1856","CVE":"CVE-2007-1856","Year":"2007"},"notes":[{"CveYear":"2007","CveId":"1856","Ordinal":"1","NoteData":"Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cron failure) by creating hard links, which results in a failed st_nlink check in database.c.","Type":"Description","Title":"CVE-2007-1856"},{"CveYear":"2007","CveId":"1856","Ordinal":"2","NoteData":"2007-04-17","Type":"Other","Title":"Published"},{"CveYear":"2007","CveId":"1856","Ordinal":"3","NoteData":"2017-10-09","Type":"Other","Title":"Modified"}]}}}