CVE-2021-43083

{"containers": {"cna": {"affected": [{"product": "Apache PLC4X", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "0.9.0", "status": "affected", "version": "PLC4C", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Apache PLC4X would like to thank Eugene Lim for reporting this issue."}], "descriptions": [{"lang": "en", "value": "Apache PLC4X - PLC4C (Only the C language implementation was effected) was vulnerable to an unsigned integer underflow flaw inside the tcp transport. Users should update to 0.9.1, which addresses this issue. However, in order to exploit this vulnerability, a user would have to actively connect to a mallicious device which could send a response with invalid content. Currently we consider the probability of this being exploited as quite minimal, however this could change in the future, especially with the industrial networks growing more and more together."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-119", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-191", "description": "CWE-191 Integer Underflow (Wrap or Wraparound)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-12-20T15:06:56.000Z", "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7"}, {"name": "[oss-security] 20211220 CVE-2021-43083: Apache PLC4X 0.9.0 Buffer overflow in PLC4C via crafted server response", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2021/12/20/2"}], "source": {"discovery": "UNKNOWN"}, "title": "Apache PLC4X 0.9.0 Buffer overflow in PLC4C via crafted server response", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@apache.org", "ID": "CVE-2021-43083", "STATE": "PUBLIC", "TITLE": "Apache PLC4X 0.9.0 Buffer overflow in PLC4C via crafted server response"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Apache PLC4X", "version": {"version_data": [{"version_affected": "<=", "version_name": "PLC4C", "version_value": "0.9.0"}]}}]}, "vendor_name": "Apache Software Foundation"}]}}, "credit": [{"lang": "eng", "value": "Apache PLC4X would like to thank Eugene Lim for reporting this issue."}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Apache PLC4X - PLC4C (Only the C language implementation was effected) was vulnerable to an unsigned integer underflow flaw inside the tcp transport. Users should update to 0.9.1, which addresses this issue. However, in order to exploit this vulnerability, a user would have to actively connect to a mallicious device which could send a response with invalid content. Currently we consider the probability of this being exploited as quite minimal, however this could change in the future, especially with the industrial networks growing more and more together."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": [{}], "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}, {"description": [{"lang": "eng", "value": "CWE-191 Integer Underflow (Wrap or Wraparound)"}]}]}, "references": {"reference_data": [{"name": "https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7", "refsource": "MISC", "url": "https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7"}, {"name": "[oss-security] 20211220 CVE-2021-43083: Apache PLC4X 0.9.0 Buffer overflow in PLC4C via crafted server response", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/12/20/2"}]}, "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T03:47:13.291Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7"}, {"name": "[oss-security] 20211220 CVE-2021-43083: Apache PLC4X 0.9.0 Buffer overflow in PLC4C via crafted server response", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2021/12/20/2"}]}]}, "cveMetadata": {"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "assignerShortName": "apache", "cveId": "CVE-2021-43083", "datePublished": "2021-12-19T08:25:09.000Z", "dateReserved": "2021-10-30T00:00:00.000Z", "dateUpdated": "2024-08-04T03:47:13.291Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Apache PLC4X", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "0.9.0", "status": "affected", "version": "PLC4C", "versionType": "custom"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:plc4x:*:*:*:*:*:*:*:*", "matchCriteriaId": "468F9356-5585-4ABD-8930-27D4F2E2823F", "versionEndExcluding": "0.9.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Apache PLC4X - PLC4C (Only the C language implementation was effected) was vulnerable to an unsigned integer underflow flaw inside the tcp transport. Users should update to 0.9.1, which addresses this issue. However, in order to exploit this vulnerability, a user would have to actively connect to a mallicious device which could send a response with invalid content. Currently we consider the probability of this being exploited as quite minimal, however this could change in the future, especially with the industrial networks growing more and more together."}, {"lang": "es", "value": "Apache PLC4X - PLC4C (s\u00f3lo la implementaci\u00f3n en lenguaje C estaba afectada) era vulnerable a un fallo de desbordamiento de enteros sin signo dentro del transporte tcp. Los usuarios deber\u00edan actualizar a la versi\u00f3n 0.9.1, que aborda este problema. Sin embargo, para poder explotar esta vulnerabilidad, un usuario tendr\u00eda que conectarse activamente a un dispositivo malicioso que pudiera enviar una respuesta con contenido no v\u00e1lido. Actualmente consideramos que la probabilidad de que esto sea explotado es bastante m\u00ednima, sin embargo esto podr\u00eda cambiar en el futuro, especialmente con las redes industriales creciendo cada vez m\u00e1s juntas"}], "id": "CVE-2021-43083", "lastModified": "2026-06-17T04:10:29.583", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "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": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-19T09:15:06.633", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/12/20/2"}, {"source": "security@apache.org", "tags": ["Vendor Advisory"], "url": "https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/12/20/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-191"}], "source": "security@apache.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-191"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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