CVE-2016-9755

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3C328078-DE6F-4775-B855-1B0759412F43", "versionEndIncluding": "4.8.15", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c."}, {"lang": "es", "value": "El subsistema netfilter en el kernel de Linux en versiones anteriores a 4.9 no maneja adecuadamente reensamblaje IPv6, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (desbordamiento de entero, escritura fuera de l\u00edmites y GPF) o posiblemente tener otro impacto no especificado a trav\u00e9s de una aplicaci\u00f3n manipulada que hace un socket, conecta y escribe llamadas al sistema, relacionado con net/ipv6/netfilter/nf_conntrack_reasm.c y net/ipv6/netfilter/nf_defrag_ipv6_hooks.c."}], "id": "CVE-2016-9755", "lastModified": "2026-06-17T00:56:31.560", "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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-12-28T07:59:00.430", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b57da0630c9fd36ed7a20fc0f98dc82cc0777fa"}, {"source": "cve@mitre.org", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2016/12/01/10"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/94626"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1400904"}, {"source": "cve@mitre.org", "url": "https://github.com/torvalds/linux/commit/9b57da0630c9fd36ed7a20fc0f98dc82cc0777fa"}, {"source": "cve@mitre.org", "url": "https://groups.google.com/forum/#%21topic/syzkaller/GFbGpX7nTEo"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch"], "url": "https://www.spinics.net/lists/netdev/msg407525.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b57da0630c9fd36ed7a20fc0f98dc82cc0777fa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://www.openwall.com/lists/oss-security/2016/12/01/10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/94626"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1400904"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/torvalds/linux/commit/9b57da0630c9fd36ed7a20fc0f98dc82cc0777fa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://groups.google.com/forum/#%21topic/syzkaller/GFbGpX7nTEo"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://www.spinics.net/lists/netdev/msg407525.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting IPv6 packets", "id": "1400904", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1400904"}, "csaw": false, "cvss": {"cvss_base_score": "5.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:P/A:P", "status": "draft"}, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "status": "draft"}, "cwe": "CWE-787", "details": ["The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c.", "An attacker on a network could abuse a flaw in the IPv6 stack fragment reassembly code to induce kernel memory corruption on the system, possibly leading to a system crash."], "name": "CVE-2016-9755", "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": "2016-11-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-9755\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-9755"], "threat_severity": "Moderate"}

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