{"id":"CVE-2013-4563","aliases":["DEBIAN-CVE-2013-4563","EUVD-2013-4421","GHSA-8qgm-44j9-8vrh","UBUNTU-CVE-2013-4563"],"status":"published","title":"The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when...","description":"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.","severity":{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03899,"percentile":0.90339,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2013-11-19T15:00:00Z","modified":"2026-09-01T20:03:18Z","fixes":[{"ecosystem":"Debian:12","package":"linux","fixed_in":["3.11.10-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["3.11.10-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["3.11.10-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.11.10-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.11.10-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.11.10-1"}]}]}],"products":[{"vendor":"canonical","product":"ubuntu_linux"},{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://www.ubuntu.com/usn/USN-2113-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","Third Party Advisory","advisory"]},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e033e04c2678dbbe74a46b23fffb7bb918c288e","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.ubuntu.com/usn/USN-2117-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/torvalds/linux/commit/0e033e04c2678dbbe74a46b23fffb7bb918c288e","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","evidence","fix","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1030015","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","report"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"http://www.openwall.com/lists/oss-security/2013/11/13/9","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Patch","article","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4563"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0e033e04c2678dbbe74a46b23fffb7bb918c288e","tags":["report"]},{"url":"https://github.com/advisories/GHSA-8qgm-44j9-8vrh"},{"url":"https://security-tracker.debian.org/tracker/CVE-2013-4563","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2013-4563","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2113-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-2117-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-4563","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2013-4563","description":"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.","status":"published","published":"2013-11-19T15:00:00Z","modified":"2024-08-06T16:45:15.247Z","updated_at":"2026-11-02T14:34:57.869657Z"}],"euvd":[{"id":"EUVD-2013-4421","description":"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.","status":"published","published":"2013-11-19T15:00:00Z","modified":"2024-08-06T16:45:15Z","updated_at":"2026-11-03T01:56:31.067159Z"}],"ghsa":[{"id":"GHSA-8qgm-44j9-8vrh","title":"The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel through 3.12, when...","description":"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.","status":"published","published":"2022-05-17T04:50:53Z","modified":"2023-02-21T05:06:34Z","updated_at":"2026-11-02T14:54:11.906282Z"}],"nvd":[{"id":"CVE-2013-4563","description":"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.","status":"published","published":"2013-11-20T13:19:41.697Z","modified":"2026-06-16T23:57:27.573Z","cvss":[{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:02:40.988689Z"}],"osv":[{"id":"CVE-2013-4563","description":"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.","status":"published","published":"2013-11-20T13:19:41Z","modified":"2026-04-10T03:43:00.650533Z","updated_at":"2026-11-02T15:43:59.09154Z"},{"id":"DEBIAN-CVE-2013-4563","description":"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.","status":"published","published":"2013-11-20T13:19:41.697Z","modified":"2026-09-01T20:03:18.426975018Z","updated_at":"2026-11-02T15:45:25.819707Z"},{"id":"UBUNTU-CVE-2013-4563","description":"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.","status":"withdrawn","published":"2013-11-20T00:00:00Z","modified":"2026-02-04T04:13:22.397538Z","updated_at":"2026-11-02T15:54:07.421078Z"}]}}