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.
総合評価: CVE-2017-18017 は高リスク（78.8/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 52.19%、99 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +17.88% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 34.31% | 52.19% | +17.88% |
| 2 | 2026-03-26 | 40.71% | 34.31% | -6.40% |
| 3 | 2026-03-17 | — | 40.71% | — |
EPSS の全履歴 （全 33 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2017-18017 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2017-18017 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2017-18017 |
suse
|
medium | CVE-2017-18017 severity moderate: SUSE including 228 source package names (cluster-md-kmp-default-4.4.114-92.64.1, cluster-md-kmp-default-4.4.114-94.11.3, …), 526 product×package rows across 86 product lines (SUSE CaaS Platform 4.0, SUSE CaaS Platform 4.5, … (86 product lines)): Fixed 317, Known Not Affected 209. | https://www.suse.com/security/cve/CVE-2017-18017/ |
ubuntu
|
medium | CVE-2017-18017 medium priority: Ubuntu including 97 source packages (linux, linux-aws, …), 863 status rows across 12 suites (artful, bionic, cosmic, focal, jammy, noble, oracular, plucky, trusty, upstream, xenial, zesty): DNE 588, not-affected 149, released 108, ignored 18. | https://ubuntu.com/security/CVE-2017-18017 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 3.2, < 3.2.99 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.3, < 3.10.108 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.11, < 3.16.54 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.17, < 3.18.60 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.19, < 4.1.43 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.2, < 4.4.76 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.5, < 4.9.36 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.10, < 4.11 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| arista | eos | 4.20.1fx-virtual-router | cpe:2.3:o:arista:eos:4.20.1fx-virtual-router:*:*:*:*:*:*:* |
| f5 | arx | >= 6.2.0, <= 6.4.0 | cpe:2.3:a:f5:arx:*:*:*:*:*:*:*:* |
| suse | caas_platform | — | cpe:2.3:a:suse:caas_platform:*:*:*:*:*:*:*:* |
| suse | linux_enterprise_debuginfo | 11 | cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_debuginfo | 11 | cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_module_for_public_cloud | 12 | cpe:2.3:a:suse:linux_enterprise_module_for_public_cloud:12:*:*:*:*:*:*:* |
| suse | linux_enterprise_point_of_sale | 11 | cpe:2.3:a:suse:linux_enterprise_point_of_sale:11:sp3:*:*:*:*:*:* |
| suse | openstack_cloud | 6 | cpe:2.3:a:suse:openstack_cloud:6:*:*:*:*:*:*:* |
| opensuse | leap | 42.3 | cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* |
| suse | linux_enterprise_desktop | 12 | cpe:2.3:o:suse:linux_enterprise_desktop:12:sp2:*:*:*:*:*:* |
| suse | linux_enterprise_desktop | 12 | cpe:2.3:o:suse:linux_enterprise_desktop:12:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_high_availability | 12 | cpe:2.3:o:suse:linux_enterprise_high_availability:12:sp2:*:*:*:*:*:* |
| suse | linux_enterprise_high_availability | 12 | cpe:2.3:o:suse:linux_enterprise_high_availability:12:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_high_availability_extension | 11 | cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_live_patching | 12 | cpe:2.3:o:suse:linux_enterprise_live_patching:12:-:*:*:*:*:*:* |
| suse | linux_enterprise_live_patching | 12 | cpe:2.3:o:suse:linux_enterprise_live_patching:12:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_real_time_extension | 11 | cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_real_time_extension | 12 | cpe:2.3:o:suse:linux_enterprise_real_time_extension:12:sp2:*:*:*:*:*:* |
| suse | linux_enterprise_real_time_extension | 12 | cpe:2.3:o:suse:linux_enterprise_real_time_extension:12:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_server | 11 | cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:* |
| suse | linux_enterprise_server | 11 | cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_server | 12 | cpe:2.3:o:suse:linux_enterprise_server:12:*:*:*:ltss:*:*:* |
| suse | linux_enterprise_server | 12 | cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:*:sap:*:* |
| suse | linux_enterprise_server | 12 | cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:ltss:*:*:* |
| suse | linux_enterprise_server | 12 | cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:*:* |
| suse | linux_enterprise_server | 12 | cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:raspberry_pi:* |
| suse | linux_enterprise_server | 12 | cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:-:-:*:* |
| suse | linux_enterprise_software_development_kit | 11 | cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_software_development_kit | 12 | cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:sp2:*:*:*:*:*:* |
| suse | linux_enterprise_software_development_kit | 12 | cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_workstation_extension | 12 | cpe:2.3:o:suse:linux_enterprise_workstation_extension:12:sp2:*:*:*:*:*:* |
| suse | linux_enterprise_workstation_extension | 12 | cpe:2.3:o:suse:linux_enterprise_workstation_extension:12:sp3:*:*:*:*:*:* |
| openstack | cloud_magnum_orchestration | 7 | cpe:2.3:a:openstack:cloud_magnum_orchestration:7:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
| redhat | mrg_realtime | 2.0 | cpe:2.3:a:redhat:mrg_realtime:2.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 7.7 | cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_real_time | 7 | cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_real_time_for_nfv | 7 | cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.7 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.3 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.4 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.7 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |