CVE-2020-9366

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:*", "matchCriteriaId": "BA50ACA2-BB43-4DDC-85A2-C702660DC17A", "versionEndExcluding": "4.8.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact."}, {"lang": "es", "value": "Se encontr\u00f3 un desbordamiento del b\u00fafer en la forma en que GNU Screen versiones anteriores a 4.8.0, trat\u00f3 el escape especial a OSC 49. Una salida especialmente dise\u00f1ada, o un programa especial, podr\u00eda corromper la memoria y bloquear La Pantalla o posiblemente tener otro impacto no especificado."}], "id": "CVE-2020-9366", "lastModified": "2026-06-17T03:27:49.390", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-02-24T17:15:15.967", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2020/02/25/1"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Release Notes", "Vendor Advisory"], "url": "https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202003-62"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Release Notes"], "url": "https://www.openwall.com/lists/oss-security/2020/02/06/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2020/02/25/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Release Notes", "Vendor Advisory"], "url": "https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202003-62"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Release Notes"], "url": "https://www.openwall.com/lists/oss-security/2020/02/06/3"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "screen: Out of bounds access when setting w_xtermosc after OSC 49", "id": "1801405", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1801405"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-119", "details": ["A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact."], "name": "CVE-2020-9366", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "screen", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "screen", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "screen", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2020-02-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-9366\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-9366"], "statement": "It is believed that the vulnerability was caused by upstream commit c5db181. GNU screen versions prior to 4.7.0 do not seem to be impacted.", "threat_severity": "Moderate"}

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