CVE-2021-41160

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-41160", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "dateUpdated": "2025-11-03T20:33:53.998Z", "dateReserved": "2021-09-15T00:00:00.000Z", "datePublished": "2021-10-21T00:00:00.000Z"}, "containers": {"cna": {"title": "Improper region checks in FreeRDP allow out of bound write to memory", "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-11-17T19:06:22.518Z"}, "descriptions": [{"lang": "en", "value": "FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a malicious server might trigger out of bound writes in a connected client. Connections using GDI or SurfaceCommands to send graphics updates to the client might send `0` width/height or out of bound rectangles to trigger out of bound writes. With `0` width or heigth the memory allocation will be `0` but the missing bounds checks allow writing to the pointer at this (not allocated) region. This issue has been patched in FreeRDP 2.4.1."}], "affected": [{"vendor": "FreeRDP", "product": "FreeRDP", "versions": [{"version": "< 2.4.1", "status": "affected"}]}], "references": [{"url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7c9r-6r2q-93qg"}, {"name": "FEDORA-2021-2c25f03d0b", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWJXQOWKNR7O5HM2HFJOM4GBUFPTE3RG/"}, {"name": "FEDORA-2021-5d227916bc", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCR73EDVPLI6TRWRAWJCJ7OBYDKBB74/"}, {"name": "FEDORA-2021-ac23d9e47f", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WIZUPVRGCWUDAPDOQVUGUIYUO7UWKMXX/"}, {"name": "GLSA-202210-24", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202210-24"}, {"name": "[debian-lts-announce] 20231117 [SECURITY] [DLA 3654-1] freerdp2 security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-787: Out-of-bounds Write", "cweId": "CWE-787"}]}], "source": {"advisory": "GHSA-7c9r-6r2q-93qg", "discovery": "UNKNOWN"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7c9r-6r2q-93qg", "tags": ["x_transferred"]}, {"name": "FEDORA-2021-2c25f03d0b", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWJXQOWKNR7O5HM2HFJOM4GBUFPTE3RG/"}, {"name": "FEDORA-2021-5d227916bc", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCR73EDVPLI6TRWRAWJCJ7OBYDKBB74/"}, {"name": "FEDORA-2021-ac23d9e47f", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WIZUPVRGCWUDAPDOQVUGUIYUO7UWKMXX/"}, {"name": "GLSA-202210-24", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202210-24"}, {"name": "[debian-lts-announce] 20231117 [SECURITY] [DLA 3654-1] freerdp2 security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00016.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:33:53.998Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "FreeRDP", "vendor": "FreeRDP", "versions": [{"status": "affected", "version": "< 2.4.1"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*", "matchCriteriaId": "41597AE5-E68B-4677-9549-368C63ACA45E", "versionEndExcluding": "2.4.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a malicious server might trigger out of bound writes in a connected client. Connections using GDI or SurfaceCommands to send graphics updates to the client might send `0` width/height or out of bound rectangles to trigger out of bound writes. With `0` width or heigth the memory allocation will be `0` but the missing bounds checks allow writing to the pointer at this (not allocated) region. This issue has been patched in FreeRDP 2.4.1."}, {"lang": "es", "value": "FreeRDP es una implementaci\u00f3n libre del Protocolo de Escritorio Remoto (RDP), publicada bajo la licencia Apache. En las versiones afectadas, un servidor malicioso podr\u00eda desencadenar escrituras fuera de l\u00edmites en un cliente conectado. Las conexiones que usan GDI o SurfaceCommands para enviar actualizaciones de gr\u00e1ficos al cliente podr\u00edan enviar rect\u00e1ngulos de anchura/altura \"0\" o fuera de l\u00edmites para desencadenar escrituras fuera de l\u00edmites. Con una anchura o altura de \"0\" la asignaci\u00f3n de memoria ser\u00e1 \"0\" pero las comprobaciones de l\u00edmites faltantes permiten escribir en el puntero en esta regi\u00f3n (no asignada). Este problema ha sido parcheado en FreeRDP versi\u00f3n 2.4.1"}], "id": "CVE-2021-41160", "lastModified": "2026-06-17T04:07:59.800", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-10-21T19:15:07.947", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7c9r-6r2q-93qg"}, {"source": "security-advisories@github.com", "url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html"}, {"source": "security-advisories@github.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWJXQOWKNR7O5HM2HFJOM4GBUFPTE3RG/"}, {"source": "security-advisories@github.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WIZUPVRGCWUDAPDOQVUGUIYUO7UWKMXX/"}, {"source": "security-advisories@github.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCR73EDVPLI6TRWRAWJCJ7OBYDKBB74/"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-24"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7c9r-6r2q-93qg"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00016.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWJXQOWKNR7O5HM2HFJOM4GBUFPTE3RG/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WIZUPVRGCWUDAPDOQVUGUIYUO7UWKMXX/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCR73EDVPLI6TRWRAWJCJ7OBYDKBB74/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-24"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:4619", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "freerdp-0:2.1.1-5.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-11-11T00:00:00Z"}, {"advisory": "RHSA-2021:4622", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "freerdp-2:2.2.0-7.el8_5", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-11T00:00:00Z"}, {"advisory": "RHSA-2021:4620", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "freerdp-2:2.0.0-46.rc4.el8_1.5", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-11-11T00:00:00Z"}, {"advisory": "RHSA-2021:4621", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "freerdp-2:2.0.0-46.rc4.el8_2.5", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-11-11T00:00:00Z"}, {"advisory": "RHSA-2021:4623", "cpe": "cpe:/a:redhat:rhel_eus:8.4", "package": "freerdp-2:2.2.0-6.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2021-11-11T00:00:00Z"}], "bugzilla": {"description": "freerdp: improper region checks in all clients allow out of bound write to memory", "id": "2016412", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2016412"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-787", "details": ["FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a malicious server might trigger out of bound writes in a connected client. Connections using GDI or SurfaceCommands to send graphics updates to the client might send `0` width/height or out of bound rectangles to trigger out of bound writes. With `0` width or heigth the memory allocation will be `0` but the missing bounds checks allow writing to the pointer at this (not allocated) region. This issue has been patched in FreeRDP 2.4.1.", "A flaw was found in the FreeRDP client where it fails to validate input data when using connections with GDI or SurfaceCommands. This flaw could allow a malicious server sending graphics updates to a client to cause an out of bounds write in client memory using a specially crafted input. The highest threat from this flaw is that it could allow arbitrary code to be executed on the target system."], "name": "CVE-2021-41160", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-41160\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-41160"], "threat_severity": "Important"}

{}