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{"id": "UB:CVE-2021-42612", "vendorId": null, "type": "ubuntucve", "bulletinFamily": "info", "title": "CVE-2021-42612", "description": "A use after free in cleanup_index in index.c in Halibut 1.2 allows an\nattacker to cause a segmentation fault or possibly have other unspecified\nimpact via a crafted text document.", "published": "2022-05-24T00:00:00", "modified": "2022-05-24T00:00:00", "epss": [{"cve": "CVE-2021-42612", "epss": 0.00053, "percentile": 0.19365, "modified": "2023-05-23"}], "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 6.8}, "severity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}, "href": "https://ubuntu.com/security/CVE-2021-42612", "reporter": "ubuntu.com", "references": ["https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42612", "https://carteryagemann.com/halibut-case-study.html#poc-halibut-text-uaf", "https://nvd.nist.gov/vuln/detail/CVE-2021-42612", "https://launchpad.net/bugs/cve/CVE-2021-42612", "https://security-tracker.debian.org/tracker/CVE-2021-42612"], "cvelist": ["CVE-2021-42612"], "immutableFields": [], "lastseen": "2023-05-24T13:19:35", "viewCount": 12, "enchantments": {"score": {"value": 5.1, "vector": "NONE"}, "dependencies": {"references": [{"type": "cve", "idList": ["CVE-2021-42612"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2021-42612"]}, {"type": "fedora", "idList": ["FEDORA:7552030B1D09"]}, {"type": "mageia", "idList": ["MGASA-2022-0237"]}, {"type": "veracode", "idList": ["VERACODE:35935"]}]}, "epss": [{"cve": "CVE-2021-42612", "epss": 0.00053, "percentile": 0.19323, "modified": "2023-05-02"}], "vulnersScore": 5.1}, "_state": {"score": 1684934397, "dependencies": 1685080902, "epss": 0}, "_internal": {"score_hash": "5ffdfcdd41c89795af227b67e5ec4bfc"}, "affectedPackage": [{"OS": "ubuntu", "OSVersion": "20.04", "arch": "noarch", "packageVersion": "any", "packageFilename": "UNKNOWN", "operator": "lt", "status": "needs triage", "packageName": "halibut"}, {"OS": "ubuntu", "OSVersion": "22.04", "arch": "noarch", "packageVersion": "any", "packageFilename": "UNKNOWN", "operator": "lt", "status": "needs triage", "packageName": "halibut"}, {"OS": "ubuntu", "OSVersion": "upstream", "arch": "noarch", "packageVersion": "any", "packageFilename": "UNKNOWN", "operator": "lt", "status": "needs triage", "packageName": "halibut"}, {"OS": "ubuntu", "OSVersion": "upstream", "arch": "noarch", "packageVersion": "any", "packageFilename": "UNKNOWN", "operator": "lt", "status": "needs triage", "packageName": "halibut"}, {"OS": "ubuntu", "OSVersion": "upstream", "arch": "noarch", "packageVersion": "any", "packageFilename": "UNKNOWN", "operator": "lt", "status": "needs triage", "packageName": "halibut"}], "bugs": []}

{"debiancve": [{"lastseen": "2023-05-24T10:09:42", "description": "A use after free in cleanup_index in index.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have other unspecified impact via a crafted text document.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-05-24T19:15:00", "type": "debiancve", "title": "CVE-2021-42612", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-42612"], "modified": "2022-05-24T19:15:00", "id": "DEBIANCVE:CVE-2021-42612", "href": "https://security-tracker.debian.org/tracker/CVE-2021-42612", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "veracode": [{"lastseen": "2023-05-24T14:06:04", "description": "halibut is vulnerable to denial of service. The vulnerability exists due to a use after free in cleanup_index in index.c allowing an attacker to cause a segmentation fault or possibly have other unspecified impact via a crafted text document.\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-06-11T19:15:45", "type": "veracode", "title": "Denial Of Service (DoS)", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-42612"], "modified": "2022-11-04T18:41:41", "id": "VERACODE:35935", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-35935/summary", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "cve": [{"lastseen": "2023-05-23T15:46:42", "description": "A use after free in cleanup_index in index.c in Halibut 1.2 allows an attacker to cause a segmentation fault or possibly have other unspecified impact via a crafted text document.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-05-24T19:15:00", "type": "cve", "title": "CVE-2021-42612", "cwe": ["CWE-416"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-42612"], "modified": "2022-11-04T16:42:00", "cpe": ["cpe:/o:fedoraproject:fedora:35", "cpe:/a:halibut_project:halibut:1.2"], "id": "CVE-2021-42612", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-42612", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "cpe:2.3:a:halibut_project:halibut:1.2:*:*:*:*:*:*:*"]}], "fedora": [{"lastseen": "2023-05-23T16:36:21", "description": "Halibut is yet another text formatting system, intended primarily for writing software documentation. It accepts a single source format and outputs a variety of formats, planned to include text, HTML, Texinfo, Windows Help, Windows HTMLHelp, PostScript and PDF. It has comprehensive indexing and cross-referencing support, and generates hyperlinks within output documents wherever possible. ", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-06-16T01:27:41", "type": "fedora", "title": "[SECURITY] Fedora 35 Update: halibut-1.3-3.fc35", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-42612", "CVE-2021-42613", "CVE-2021-42614"], "modified": "2022-06-16T01:27:41", "id": "FEDORA:7552030B1D09", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/CC7UZ7NRXDA7YSCSGWE2CBQM7OZS3K2R/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "mageia": [{"lastseen": "2023-05-23T16:24:18", "description": "Use-after-free in cleanup_index() in index.c (CVE-2021-42612) Double free in cleanup_index() in index.c (CVE-2021-42613) Use-after-free in info_width_internal() in bk_info.c (CVE-2021-42614) \n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-06-18T21:30:41", "type": "mageia", "title": "Updated halibut packages fix security vulnerability\n", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-42612", "CVE-2021-42613", "CVE-2021-42614"], "modified": "2022-06-18T21:30:41", "id": "MGASA-2022-0237", "href": "https://advisories.mageia.org/MGASA-2022-0237.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}]}