CVE-2020-27066

{"containers": {"cna": {"affected": [{"product": "Android", "vendor": "n/a", "versions": [{"status": "affected", "version": "Android kernel"}]}], "descriptions": [{"lang": "en", "value": "In xfrm6_tunnel_free_spi of net/ipv6/xfrm6_tunnel.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-168043318"}], "problemTypes": [{"descriptions": [{"description": "Elevation of privilege", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-12-15T16:17:13.000Z", "orgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "shortName": "google_android"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://source.android.com/security/bulletin/pixel/2020-12-01"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@android.com", "ID": "CVE-2020-27066", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Android", "version": {"version_data": [{"version_value": "Android kernel"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In xfrm6_tunnel_free_spi of net/ipv6/xfrm6_tunnel.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-168043318"}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Elevation of privilege"}]}]}, "references": {"reference_data": [{"name": "https://source.android.com/security/bulletin/pixel/2020-12-01", "refsource": "MISC", "url": "https://source.android.com/security/bulletin/pixel/2020-12-01"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T16:11:35.932Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://source.android.com/security/bulletin/pixel/2020-12-01"}]}]}, "cveMetadata": {"assignerOrgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6", "assignerShortName": "google_android", "cveId": "CVE-2020-27066", "datePublished": "2020-12-15T16:17:13.000Z", "dateReserved": "2020-10-12T00:00:00.000Z", "dateUpdated": "2024-08-04T16:11:35.932Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Android", "vendor": "n/a", "versions": [{"status": "affected", "version": "Android kernel"}]}], "source": "security@android.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In xfrm6_tunnel_free_spi of net/ipv6/xfrm6_tunnel.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-168043318"}, {"lang": "es", "value": "En la funci\u00f3n xfrm6_tunnel_free_spi del archivo net/ipv6/xfrm6_tunnel.c, se presenta un posible uso de la memoria previamente liberada debido a un bloqueo inapropiado. Esto podr\u00eda conllevar a una escalada local de privilegios con los privilegios de ejecuci\u00f3n System necesarios. No es requerida una interacci\u00f3n del usuario para su explotaci\u00f3n. Producto: Android, Versiones: Kernel de Android, ID de Android: A-168043318"}], "id": "CVE-2020-27066", "lastModified": "2026-06-17T03:08:47.880", "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": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-15T17:15:14.160", "references": [{"source": "security@android.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://source.android.com/security/bulletin/pixel/2020-12-01"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://source.android.com/security/bulletin/pixel/2020-12-01"}], "sourceIdentifier": "security@android.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}, {"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: use after free in xfrm6_tunnel_free_spi of net/ipv6/xfrm6_tunnel.c leads to local escalation of privilege", "id": "1928716", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1928716"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In xfrm6_tunnel_free_spi of net/ipv6/xfrm6_tunnel.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-168043318", "A flaw was found in the Linux kernel. There is a possible use after free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent the module xfrm6_tunnel from being loaded.\nPlease see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2020-27066", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-12-15T10:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-27066\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-27066"], "statement": "This flaw is rated as having Low impact because of the need to have elevated privileges and both configuration with the usage of IPV6.", "threat_severity": "Low"}

{}