CVE-2016-9604

{"containers": {"cna": {"affected": [{"product": "security", "vendor": "kernel", "versions": [{"status": "affected", "version": "kernel 4.11-rc8"}]}], "datePublic": "2017-04-18T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring."}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-732", "description": "CWE-732", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2018-07-12T09:57:01.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f"}, {"name": "RHSA-2017:2669", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2017:2669"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.novell.com/show_bug.cgi?id=1035576"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html"}, {"name": "102135", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/102135"}, {"name": "RHSA-2017:2077", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2017:2077"}, {"name": "RHSA-2017:1842", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2017:1842"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secalert@redhat.com", "ID": "CVE-2016-9604", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "security", "version": {"version_data": [{"version_value": "kernel 4.11-rc8"}]}}]}, "vendor_name": "kernel"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring."}]}, "impact": {"cvss": [[{"vectorString": "4.4/CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}], [{"vectorString": "1.2/AV:L/AC:H/Au:N/C:N/I:P/A:N", "version": "2.0"}]]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-732"}]}]}, "references": {"reference_data": [{"name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f", "refsource": "CONFIRM", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f"}, {"name": "RHSA-2017:2669", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2017:2669"}, {"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604", "refsource": "CONFIRM", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604"}, {"name": "https://bugzilla.novell.com/show_bug.cgi?id=1035576", "refsource": "CONFIRM", "url": "https://bugzilla.novell.com/show_bug.cgi?id=1035576"}, {"name": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html", "refsource": "CONFIRM", "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html"}, {"name": "102135", "refsource": "BID", "url": "http://www.securityfocus.com/bid/102135"}, {"name": "RHSA-2017:2077", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2017:2077"}, {"name": "RHSA-2017:1842", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2017:1842"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T02:59:03.056Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f"}, {"name": "RHSA-2017:2669", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "https://access.redhat.com/errata/RHSA-2017:2669"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.novell.com/show_bug.cgi?id=1035576"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html"}, {"name": "102135", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/102135"}, {"name": "RHSA-2017:2077", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "https://access.redhat.com/errata/RHSA-2017:2077"}, {"name": "RHSA-2017:1842", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "https://access.redhat.com/errata/RHSA-2017:1842"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2016-9604", "datePublished": "2018-07-11T13:00:00.000Z", "dateReserved": "2016-11-23T00:00:00.000Z", "dateUpdated": "2024-08-06T02:59:03.056Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "security", "vendor": "kernel", "versions": [{"status": "affected", "version": "kernel 4.11-rc8"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BDB550B4-ED03-4369-B53F-4FF3A24ECB0D", "versionEndIncluding": "4.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc1:*:*:*:*:*:*", "matchCriteriaId": "45227BEA-300E-4694-8ADE-D0FA7C560C83", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc2:*:*:*:*:*:*", "matchCriteriaId": "9F27DB1B-125C-416A-8DF1-80EE75E4F972", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc3:*:*:*:*:*:*", "matchCriteriaId": "64F78CCF-F54B-4D1C-AFA6-DE4076C3A263", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc4:*:*:*:*:*:*", "matchCriteriaId": "A659506C-868E-4E87-B0D8-E901BC2E9BDC", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:*", "matchCriteriaId": "ACE2C8C3-F2AA-4A39-9D81-B0F8BB82B834", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:*", "matchCriteriaId": "D67BFFD0-1A52-4F5D-98DB-D94B58FD8D30", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:*", "matchCriteriaId": "7D996F38-22AC-4059-84FC-F7D69CE0CB9B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring."}, {"lang": "es", "value": "Se ha descubierto en el kernel de Linux en versiones anteriores a la 4.11-rc8 que root puede obtener acceso directo a un keyring interno, como \".dns_resolver\" en RHEL-7 o el upstream \".builtin_trusted_keys\" uni\u00e9ndose a \u00e9l como su keyring de sesi\u00f3n. Esto permite que root omita la verificaci\u00f3n de firmas del m\u00f3dulo a\u00f1adiendo una nueva clave p\u00fablica de su propia elaboraci\u00f3n al keyring."}], "id": "CVE-2016-9604", "lastModified": "2026-06-17T00:56:19.690", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-07-11T13:29:00.207", "references": [{"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/102135"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:1842"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2077"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2669"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.novell.com/show_bug.cgi?id=1035576"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/102135"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:1842"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2077"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2669"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.novell.com/show_bug.cgi?id=1035576"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-732"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-347"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "This issue was discovered by David Howells (Red Hat).", "affected_release": [{"advisory": "RHSA-2017:2077", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-693.rt56.617.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-08-01T00:00:00Z"}, {"advisory": "RHSA-2017:1842", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-693.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-08-01T00:00:00Z"}, {"advisory": "RHSA-2017:2669", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2017-09-06T00:00:00Z"}], "bugzilla": {"description": "kernel: security: The built-in keyrings for security tokens can be joined as a session and then modified by the root user", "id": "1389433", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1389433"}, "csaw": false, "cvss": {"cvss_base_score": "1.2", "cvss_scoring_vector": "AV:L/AC:H/Au:N/C:N/I:P/A:N", "status": "verified"}, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "status": "verified"}, "cwe": "CWE-732", "details": ["It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.", "It was discovered that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring."], "name": "CVE-2016-9604", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2017-04-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-9604\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-9604"], "statement": "This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 as the code with the flaw is not present in this product.\nThis issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.", "threat_severity": "Low"}

{}