CVE-2013-4563

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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": "0E06431E-08C2-49B3-9479-9E506C545BD5", "versionEndIncluding": "3.10.23", "versionStartIncluding": "3.9.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "98872EEB-8D10-4CF6-9592-F9CE1090365D", "versionEndExcluding": "3.12.4", "versionStartIncluding": "3.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*", "matchCriteriaId": "CB66DB75-2B16-4EBF-9B93-CE49D8086E41", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*", "matchCriteriaId": "7F61F047-129C-41A6-8A27-FFCBB8563E91", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote attackers to cause a denial of service (panic) via a large IPv6 UDP packet, as demonstrated by use of the Token Bucket Filter (TBF) queueing discipline."}, {"lang": "es", "value": "La funci\u00f3n udp6_ufo_fragment en net/ipv6/udp_offload.c del kernel de Linux hasta la versi\u00f3n 3.12, cuando est\u00e1 activado UDP Fragmentation Offload (UFO), no realiza adecuadamente comparaciones de cierto tama\u00f1o antes de insertar una cabecera fragmentada, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (panic) a trav\u00e9s de un paquete IPv6 UDP grande, tal y como se demostr\u00f3 mediante el uso de Token Bucket Filter (TBF)."}], "id": "CVE-2013-4563", "lastModified": "2026-06-16T23:57:27.573", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2013-11-20T13:19:41.697", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e033e04c2678dbbe74a46b23fffb7bb918c288e"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Patch"], "url": "http://www.openwall.com/lists/oss-security/2013/11/13/9"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://www.ubuntu.com/usn/USN-2113-1"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://www.ubuntu.com/usn/USN-2117-1"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1030015"}, {"source": "secalert@redhat.com", "tags": ["Exploit", "Patch"], "url": "https://github.com/torvalds/linux/commit/0e033e04c2678dbbe74a46b23fffb7bb918c288e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e033e04c2678dbbe74a46b23fffb7bb918c288e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": 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"CWE-189"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Saran Neti (TELUS Security Labs) for reporting this issue.", "bugzilla": {"description": "kernel: net: large udp packet over IPv6 over UFO-enabled device with TBF qdisc panic", "id": "1030015", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1030015"}, "csaw": false, "cvss": {"cvss_base_score": "7.1", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "status": "draft"}, "details": ["The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote attackers to cause a denial of service (panic) via a large IPv6 UDP packet, as demonstrated by use of the Token Bucket Filter (TBF) queueing discipline."], "name": "CVE-2013-4563", "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:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2013-10-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2013-4563\nhttps://nvd.nist.gov/vuln/detail/CVE-2013-4563"], "statement": "Not vulnerable.\nThis issue did not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.", "threat_severity": "Important"}

{}