{"id":"CVE-2018-5703","aliases":["DEBIAN-CVE-2018-5703","EUVD-2018-17472","GHSA-jc32-3h2c-hmcc","UBUNTU-CVE-2018-5703"],"status":"published","title":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11...","description":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11 allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via vectors involving TLS.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0263,"percentile":0.85616,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2018-01-16T09:00:00Z","modified":"2026-10-23T18:03:07Z","fixes":[{"ecosystem":"Debian:12","package":"linux","fixed_in":["4.15.11-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["4.15.11-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["4.15.11-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-azure","fixed_in":["4.15.0-1013.13~16.04.2"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-gcp","fixed_in":["4.15.0-1014.14~16.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"linux-hwe","fixed_in":["4.15.0-24.26~16.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.11-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.11-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.11-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-azure","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1013.13~16.04.2"}]}],"versions":["4.11.0-1009.9","4.11.0-1011.11","4.11.0-1013.13","4.11.0-1014.14","4.11.0-1015.15","4.11.0-1016.16","4.13.0-1005.7","4.13.0-1006.8","4.13.0-1007.9","4.13.0-1009.12","4.13.0-1011.14","4.13.0-1012.15","4.13.0-1014.17","4.13.0-1016.19","4.13.0-1018.21"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-gcp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1014.14~16.04.1"}]}],"versions":["4.10.0-1004.4","4.10.0-1006.6","4.10.0-1007.7","4.10.0-1008.8","4.10.0-1009.9","4.13.0-1002.5","4.13.0-1006.9","4.13.0-1007.10","4.13.0-1008.11","4.13.0-1011.15","4.13.0-1012.16","4.13.0-1013.17","4.13.0-1015.19","4.13.0-1017.21","4.13.0-1019.23"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"linux-hwe","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-24.26~16.04.1"}]}],"versions":["4.8.0-36.36~16.04.1","4.8.0-39.42~16.04.1","4.8.0-41.44~16.04.1","4.8.0-42.45~16.04.1","4.8.0-44.47~16.04.1","4.8.0-45.48~16.04.1","4.8.0-46.49~16.04.1","4.8.0-49.52~16.04.1","4.8.0-51.54~16.04.1","4.8.0-52.55~16.04.1","4.8.0-53.56~16.04.1","4.8.0-54.57~16.04.1","4.8.0-56.61~16.04.1","4.8.0-58.63~16.04.1","4.10.0-27.30~16.04.2","4.10.0-28.32~16.04.2","4.10.0-30.34~16.04.1","4.10.0-32.36~16.04.1","4.10.0-33.37~16.04.1","4.10.0-35.39~16.04.1","4.10.0-37.41~16.04.1","4.10.0-38.42~16.04.1","4.10.0-40.44~16.04.1","4.10.0-42.46~16.04.1","4.13.0-26.29~16.04.2","4.13.0-31.34~16.04.1","4.13.0-32.35~16.04.1","4.13.0-36.40~16.04.1","4.13.0-37.42~16.04.1","4.13.0-38.43~16.04.1","4.13.0-39.44~16.04.1","4.13.0-41.46~16.04.1","4.13.0-43.48~16.04.1","4.13.0-45.50~16.04.1"]}],"products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"https://groups.google.com/d/msg/syzkaller-bugs/0PBeVnSzfqQ/5eXAlM46BQAJ","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Mailing List","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-5703"},{"url":"https://github.com/advisories/GHSA-jc32-3h2c-hmcc"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-5703","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-5703","tags":["report"]},{"url":"https://lkml.org/lkml/2018/1/16/53","tags":["report"]},{"url":"https://patchwork.ozlabs.org/patch/801530/","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-5703","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-5703","description":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11 allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via vectors involving TLS.","status":"published","published":"2018-01-16T09:00:00Z","modified":"2024-08-05T05:40:51.183Z","updated_at":"2026-11-02T14:35:01.28843Z"}],"euvd":[{"id":"EUVD-2018-17472","description":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11 allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via vectors involving TLS.","status":"published","published":"2018-01-16T09:00:00Z","modified":"2024-08-05T05:40:51Z","updated_at":"2026-11-03T02:40:10.116776Z"}],"ghsa":[{"id":"GHSA-jc32-3h2c-hmcc","title":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11...","description":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11 allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via vectors involving TLS.","status":"published","published":"2022-05-14T03:44:31Z","modified":"2023-01-27T05:05:30Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:42:42.467243Z"}],"nvd":[{"id":"CVE-2018-5703","description":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11 allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via vectors involving TLS.","status":"published","published":"2018-01-16T09:29:00.42Z","modified":"2026-06-17T02:00:37.523Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:22.309028Z"}],"osv":[{"id":"CVE-2018-5703","description":"The 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TLS.","status":"published","published":"2018-01-16T09:29:00.42Z","modified":"2026-10-23T18:03:07.201136644Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"UBUNTU-CVE-2018-5703","description":"The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel through 4.14.11 allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via vectors involving TLS.","status":"published","published":"2018-01-16T09:29:00Z","modified":"2025-09-08T16:44:44Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:18.33562Z"}]}}