An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.
総合評価: CVE-2018-19965 は低リスク(33.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.41%、32 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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 | 0.18% | 0.41% | +0.23% |
| 2 | 2025-11-21 | 0.13% | 0.18% | +0.05% |
| 3 | 2025-11-18 | — | 0.13% | — |
EPSS の全履歴 (全 8 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 |
|---|---|---|---|---|---|---|
| 5.6 | 3.0 | MEDIUM |
|
1.1 | 4.0 | [email protected] |
| 4.7 | 2.0 | MEDIUM |
|
3.4 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2018-19965: 1 source package rows (xen); 121 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 111. | https://security.alpinelinux.org/vuln/CVE-2018-19965 |
debian
|
not yet assigned | CVE-2018-19965 not yet assigned priority: Debian including 1 source packages (xen), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-19965 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2018-19965 |
ubuntu
|
medium | CVE-2018-19965 medium priority: Ubuntu including 1 source packages (xen), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 9, ignored 6, needed 2, DNE 1, released 1. | https://ubuntu.com/security/CVE-2018-19965 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| xen | xen | <= 4.11.1 | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* |
| citrix | xenserver | 7.0 | cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:* |
| citrix | xenserver | 7.1 | cpe:2.3:a:citrix:xenserver:7.1:cu1:*:*:ltsr:*:*:* |
| citrix | xenserver | 7.5 | cpe:2.3:a:citrix:xenserver:7.5:*:*:*:*:*:*:* |
| citrix | xenserver | 7.6 | cpe:2.3:a:citrix:xenserver:7.6:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html | |
| http://www.securityfocus.com/bid/106182 | Third Party Advisory VDB Entry |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ | |
| https://support.citrix.com/article/CTX239432 | Patch Third Party Advisory |
| https://www.debian.org/security/2019/dsa-4369 | Third Party Advisory |
| https://xenbits.xen.org/xsa/advisory-279.html | Mitigation Patch Vendor Advisory |