CVE-2016-8632

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-11-08T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The tipc_msg_build function in net/tipc/msg.c in the Linux kernel through 4.8.11 does not validate the relationship between the minimum fragment length and the maximum packet size, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2016-11-28T10:57:02.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"name": "[oss-security] 20161108 CVE-2016-8632 -- Linux kernel: tipc_msg_build() doesn't validate MTU that can trigger heap overflow", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/11/08/5"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1390832"}, {"name": "94211", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/94211"}, {"name": "[netdev] 20161018 [PATCH net] tipc: Guard against tiny MTU in tipc_msg_build()", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://www.mail-archive.com/netdev%40vger.kernel.org/msg133205.html"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T02:27:41.113Z"}, "title": "CVE Program Container", "references": [{"name": "[oss-security] 20161108 CVE-2016-8632 -- Linux kernel: tipc_msg_build() doesn't validate MTU that can trigger heap overflow", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/11/08/5"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1390832"}, {"name": "94211", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/94211"}, {"name": "[netdev] 20161018 [PATCH net] tipc: Guard against tiny MTU in tipc_msg_build()", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://www.mail-archive.com/netdev%40vger.kernel.org/msg133205.html"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2016-8632", "datePublished": "2016-11-28T03:01:00.000Z", "dateReserved": "2016-10-12T00:00:00.000Z", "dateUpdated": "2024-08-06T02:27:41.113Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C213A3C5-CC01-4DE9-9C8B-2F6AE23DE77B", "versionEndExcluding": "3.2.85", "versionStartIncluding": "2.6.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6C5B0F97-B38C-412B-93E9-148AC6F6B58E", "versionEndExcluding": "3.16.40", "versionStartIncluding": "3.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B5B1E7DA-A662-40FC-A91A-E7B7273F1B93", "versionEndExcluding": "4.1.37", "versionStartIncluding": "3.17", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "68BF7913-3500-47F8-9563-A09C85A2BC6F", "versionEndExcluding": "4.4.65", "versionStartIncluding": "4.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2454EAB6-FC42-4FA4-BE76-CBAA81D4ADC4", "versionEndExcluding": "4.8.14", "versionStartIncluding": "4.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The tipc_msg_build function in net/tipc/msg.c in the Linux kernel through 4.8.11 does not validate the relationship between the minimum fragment length and the maximum packet size, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability."}, {"lang": "es", "value": "La funci\u00f3n tipc_msg_build en net/tipc/msg.c en el kernel Linux hasta la versi\u00f3n 4.8.11 no valida la relaci\u00f3n entre la longitud m\u00ednima de fragmento y el tama\u00f1o m\u00e1ximo de paquete, lo que permite a usuarios locales obtener privilegios o provocar una denegaci\u00f3n de servicio (desbordamiento de b\u00fafer basado en memoria din\u00e1mica) aprovechando la capacidad CAP_NET_ADMIN."}], "id": "CVE-2016-8632", "lastModified": "2026-06-17T00:54:38.897", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"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": "2016-11-28T03:59:04.920", "references": [{"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/11/08/5"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/94211"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1390832"}, {"source": "secalert@redhat.com", "url": "https://www.mail-archive.com/netdev%40vger.kernel.org/msg133205.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/11/08/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/94211"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1390832"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.mail-archive.com/netdev%40vger.kernel.org/msg133205.html"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Qian Zhang (Qihoo 360 Marvel Team) for reporting this issue.", "bugzilla": {"description": "kernel: TIPC subsystem: tipc_msg_build() doesn't validate MTU, may cause memory corruption.", "id": "1390832", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1390832"}, "csaw": false, "cvss": {"cvss_base_score": "6.8", "cvss_scoring_vector": "AV:L/AC:L/Au:S/C:C/I:C/A:C", "status": "draft"}, "cwe": "CWE-119", "details": ["The tipc_msg_build function in net/tipc/msg.c in the Linux kernel through 4.8.11 does not validate the relationship between the minimum fragment length and the maximum packet size, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability.", "A flaw was found in the TIPC networking subsystem which could allow for memory corruption and possible privilege escalation. The flaw involves a system with an unusually low MTU (60) on networking devices configured as bearers for the TIPC protocol. An attacker could create a packet which will overwrite memory outside of allocated space and allow for privilege escalation."], "name": "CVE-2016-8632", "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": "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-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2016-11-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-8632\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-8632"], "statement": "This issue is rated as important. The affected code is not enabled on Red Hat Enterprise Linux 6 and 7 or MRG-2 kernels. The commit introducing the comment was not included in Red Hat Enterprise Linux 5.", "threat_severity": "Moderate"}

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