{"api_version":"1","generated_at":"2026-07-23T06:11:35+00:00","cve":"CVE-2003-0955","urls":{"html":"https://cve.report/CVE-2003-0955","api":"https://cve.report/api/cve/CVE-2003-0955.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2003-0955","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2003-0955"},"summary":{"title":"CVE-2003-0955","description":"OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow.","state":"PUBLISHED","assigner":"mitre","published_at":"2003-12-15 05:00:00","updated_at":"2025-04-03 01:03:51"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"4.6","severity":"","vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","data":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:P/A:P","baseScore":4.6,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://www.openbsd.org/errata33.html","name":"http://www.openbsd.org/errata33.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"OpenBSD 3.3 errata","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.guninski.com/msuxobsd2.html","name":"http://www.guninski.com/msuxobsd2.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Vendor Advisory"],"title":"OpenBSD kernel overflow, yet still *BSD much better than\nwindows","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2","name":"http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"'compat_ibcs2(8) privilege escalation (3.3) / kernel panic (3.4)' - MARC","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/8978","name":"http://www.securityfocus.com/bid/8978","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"OpenBSD Local Malformed Binary Execution Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2","name":"http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"'Exec header kernel panic' - MARC","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch","name":"ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"text/x-diff","httpstatus":"-1","archivestatus":"200"},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html","name":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"[Full-Disclosure] OpenBSD kernel panic, yet still *BSD much better than windows","mime":"text/html","httpstatus":"404","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2003-0955","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2003-0955","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":"2003","cve_id":"955","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"openbsd","cpe5":"openbsd","cpe6":"3.3","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"955","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"openbsd","cpe5":"openbsd","cpe6":"3.4","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-08T02:12:35.415Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"20031104 010: RELIABILITY FIX: November 4, 2003","tags":["vendor-advisory","x_refsource_OPENBSD","x_transferred"],"url":"http://www.openbsd.org/errata33.html"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2"},{"name":"8978","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/8978"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2"},{"name":"20031104 OpenBSD kernel overflow, yet still *BSD much better than windows","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html"},{"name":"20031105 005: RELIABILITY FIX: November 4, 2003","tags":["vendor-advisory","x_refsource_OPENBSD","x_transferred"],"url":"ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch"},{"tags":["x_refsource_MISC","x_transferred"],"url":"http://www.guninski.com/msuxobsd2.html"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2003-11-04T00:00:00.000Z","descriptions":[{"lang":"en","value":"OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2016-10-17T13:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"20031104 010: RELIABILITY FIX: November 4, 2003","tags":["vendor-advisory","x_refsource_OPENBSD"],"url":"http://www.openbsd.org/errata33.html"},{"tags":["x_refsource_CONFIRM"],"url":"http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2"},{"name":"8978","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/8978"},{"tags":["x_refsource_CONFIRM"],"url":"http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2"},{"name":"20031104 OpenBSD kernel overflow, yet still *BSD much better than windows","tags":["mailing-list","x_refsource_FULLDISC"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html"},{"name":"20031105 005: RELIABILITY FIX: November 4, 2003","tags":["vendor-advisory","x_refsource_OPENBSD"],"url":"ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch"},{"tags":["x_refsource_MISC"],"url":"http://www.guninski.com/msuxobsd2.html"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2003-0955","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":"OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"20031104 010: RELIABILITY FIX: November 4, 2003","refsource":"OPENBSD","url":"http://www.openbsd.org/errata33.html"},{"name":"http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2","refsource":"CONFIRM","url":"http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2"},{"name":"8978","refsource":"BID","url":"http://www.securityfocus.com/bid/8978"},{"name":"http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2","refsource":"CONFIRM","url":"http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2"},{"name":"20031104 OpenBSD kernel overflow, yet still *BSD much better than windows","refsource":"FULLDISC","url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html"},{"name":"20031105 005: RELIABILITY FIX: November 4, 2003","refsource":"OPENBSD","url":"ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch"},{"name":"http://www.guninski.com/msuxobsd2.html","refsource":"MISC","url":"http://www.guninski.com/msuxobsd2.html"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2003-0955","datePublished":"2003-11-21T05:00:00.000Z","dateReserved":"2003-11-19T00:00:00.000Z","dateUpdated":"2024-08-08T02:12:35.415Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2003-12-15 05:00:00","lastModifiedDate":"2025-04-03 01:03:51","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:P/I:P/A:P","baseScore":4.6,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":true,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:*","matchCriteriaId":"AC46909F-DDFC-448B-BCDF-1EB343F96630"},{"vulnerable":true,"criteria":"cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:*","matchCriteriaId":"9496279F-AB43-4B53-81A6-87C651ABC4BA"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2003","CveId":"955","Ordinal":"1","Title":"CVE-2003-0955","CVE":"CVE-2003-0955","Year":"2003"},"notes":[{"CveYear":"2003","CveId":"955","Ordinal":"1","NoteData":"OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow.","Type":"Description","Title":"CVE-2003-0955"},{"CveYear":"2003","CveId":"955","Ordinal":"2","NoteData":"2003-11-21","Type":"Other","Title":"Published"},{"CveYear":"2003","CveId":"955","Ordinal":"3","NoteData":"2016-10-17","Type":"Other","Title":"Modified"}]}}}