{"cve":"CVE-2017-18017","nvd":{"published":"2018-01-03T06:29:00.517","modified":"2026-06-17T01:12:02.653","status":"Modified","description":"The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-416"],"references":["http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2638fd0f92d4397884fd991d8f4925cb3f081901","http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00008.html","http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00013.html","http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00015.html","http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00038.html"],"products":["arista:eos","canonical:ubuntu_linux","debian:debian_linux","f5:arx","linux:linux_kernel","openstack:cloud_magnum_orchestration","opensuse:leap","redhat:enterprise_linux_desktop","redhat:enterprise_linux_eus","redhat:enterprise_linux_for_real_time","redhat:enterprise_linux_for_real_time_for_nfv","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","redhat:mrg_realtime","suse:caas_platform","suse:linux_enterprise_debuginfo","suse:linux_enterprise_desktop","suse:linux_enterprise_high_availability","suse:linux_enterprise_high_availability_extension","suse:linux_enterprise_live_patching","suse:linux_enterprise_module_for_public_cloud","suse:linux_enterprise_point_of_sale","suse:linux_enterprise_real_time_extension","suse:linux_enterprise_server","suse:linux_enterprise_software_development_kit","suse:linux_enterprise_workstation_extension","suse:openstack_cloud"],"source":"nvd","synced_at":"2026-10-19T20:47:56.471723566+00:00"},"epss":{"cve":"CVE-2017-18017","score":0.52841,"percentile":0.98972,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}