CVE-2020-27347

{"containers": {"cna": {"affected": [{"product": "tmux", "vendor": "tmux", "versions": [{"lessThan": "3.1c", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "tmux", "vendor": "Ubuntu", "versions": [{"lessThan": "3.1b-1ubuntu0.1", "status": "affected", "version": "3.1b", "versionType": "custom"}, {"lessThan": "3.0a-2ubuntu0.2", "status": "affected", "version": "3.0a", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Sergey Nizovtsev"}], "datePublic": "2020-11-04T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-11-17T18:32:44.000Z", "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c"}, {"tags": ["x_refsource_MISC"], "url": "https://www.openwall.com/lists/oss-security/2020/11/05/3"}, {"name": "GLSA-202011-10", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/202011-10"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES"}], "source": {"advisory": "https://usn.ubuntu.com/usn/usn-4618-1", "discovery": "EXTERNAL"}, "title": "tmux stack buffer overflow in function input_csi_dispatch_sgr_colon", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@ubuntu.com", "DATE_PUBLIC": "2020-11-04T00:00:00.000Z", "ID": "CVE-2020-27347", "STATE": "PUBLIC", "TITLE": "tmux stack buffer overflow in function input_csi_dispatch_sgr_colon"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "tmux", "version": {"version_data": [{"version_affected": "<", "version_value": "3.1c"}]}}]}, "vendor_name": "tmux"}, {"product": {"product_data": [{"product_name": "tmux", "version": {"version_data": [{"version_affected": "<", "version_name": "3.1b", "version_value": "3.1b-1ubuntu0.1"}, {"version_affected": "<", "version_name": "3.0a", "version_value": "3.0a-2ubuntu0.2"}]}}]}, "vendor_name": "Ubuntu"}]}}, "credit": [{"lang": "eng", "value": "Sergey Nizovtsev"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-121 Stack-based Buffer Overflow"}]}]}, "references": {"reference_data": [{"name": "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c", "refsource": "MISC", "url": "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c"}, {"name": "https://www.openwall.com/lists/oss-security/2020/11/05/3", "refsource": "MISC", "url": "https://www.openwall.com/lists/oss-security/2020/11/05/3"}, {"name": "GLSA-202011-10", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202011-10"}, {"name": "https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES", "refsource": "CONFIRM", "url": "https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES"}]}, "source": {"advisory": "https://usn.ubuntu.com/usn/usn-4618-1", "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T16:11:36.587Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.openwall.com/lists/oss-security/2020/11/05/3"}, {"name": "GLSA-202011-10", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/202011-10"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES"}]}]}, "cveMetadata": {"assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "assignerShortName": "canonical", "cveId": "CVE-2020-27347", "datePublished": "2020-11-06T02:20:13.352Z", "dateReserved": "2020-10-20T00:00:00.000Z", "dateUpdated": "2024-09-17T00:20:28.710Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "tmux", "vendor": "tmux", "versions": [{"lessThan": "3.1c", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "tmux", "vendor": "Ubuntu", "versions": [{"lessThan": "3.1b-1ubuntu0.1", "status": "affected", "version": "3.1b", "versionType": "custom"}, {"lessThan": "3.0a-2ubuntu0.2", "status": "affected", "version": "3.0a", "versionType": "custom"}]}], "source": "security@ubuntu.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:tmux_project:tmux:*:*:*:*:*:*:*:*", "matchCriteriaId": "604BA314-EFDC-4F3A-9C98-8A9119D57196", "versionEndIncluding": "3.1b", "versionStartIncluding": "2.9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output."}, {"lang": "es", "value": "En tmux anterior a la versi\u00f3n 3.1c la funci\u00f3n input_csi_dispatch_sgr_colon() en el archivo input.c conten\u00eda un desbordamiento de b\u00fafer en la regi\u00f3n stack de la memoria que puede ser explotado mediante la salida del terminal"}], "id": "CVE-2020-27347", "lastModified": "2026-06-17T03:09:09.370", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "security@ubuntu.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-11-06T03:15:17.137", "references": [{"source": "security@ubuntu.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c"}, {"source": "security@ubuntu.com", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES"}, {"source": "security@ubuntu.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202011-10"}, {"source": "security@ubuntu.com", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "https://www.openwall.com/lists/oss-security/2020/11/05/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202011-10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "https://www.openwall.com/lists/oss-security/2020/11/05/3"}], "sourceIdentifier": "security@ubuntu.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "security@ubuntu.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Sergey Nizovtsev for reporting this issue.", "bugzilla": {"description": "tmux: stack buffer overflow in input_csi_dispatch_sgr_colon", "id": "1893339", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1893339"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-121", "details": ["In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output."], "name": "CVE-2020-27347", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "tmux", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "tmux", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "tmux", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-10-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-27347\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-27347"], "statement": "tmux as shipped with Red Hat Enterprise Linux of any version is not affected because the vulnerable code exists in newer versions of tmux than those shipped.", "threat_severity": "Moderate"}

{}