Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL.
結論預警: CVE-2017-7995 綜合評估為低風險（25.4/100）：CVSS 技術影響為低級，利用機率偏低（EPSS 0.37%） 強制指令: 持續追蹤利用情報與 EPSS 變化，並適時複評優先級。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.06% | 0.37% | +0.30% |
| 2 | 2023-03-07 | 0.89% | 0.06% | -0.83% |
| 3 | 2022-02-04 | — | 0.89% | — |
完整 EPSS 歷史 （共 4 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 3.8 | 3.0 | LOW |
|
2.0 | 1.4 | [email protected] |
| 1.7 | 2.0 | LOW |
|
3.1 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2017-7995 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-2017-7995 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2017-7995 |
suse
|
low | CVE-2017-7995 severity low: SUSE including 33 source package names (xen, xen-4.0.3_21548_18-52.1, …), 90 product×package rows across 15 product lines (SUSE Linux Enterprise Desktop 12 SP1, SUSE Linux Enterprise Point of Sale 11 SP3, … (15 product lines)): Fixed 52, Known Not Affected 38. | https://www.suse.com/security/cve/CVE-2017-7995/ |
ubuntu
|
medium | CVE-2017-7995 medium priority: Ubuntu including 1 source packages (xen), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): not-affected 3, DNE 1, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2017-7995 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| xen | xen | <= 4.2.5 | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* |
| suse | manager | 2.1 | cpe:2.3:a:suse:manager:2.1:*:*:*:*:*:*:* |
| suse | manager_proxy | 2.1 | cpe:2.3:a:suse:manager_proxy:2.1:*:*:*:*:*:*:* |
| suse | openstack_cloud | 5 | cpe:2.3:a:suse:openstack_cloud:5:*:*:*:*:*:*:* |
| novell | suse_linux_enterprise_point_of_sale | 11.0 | cpe:2.3:o:novell:suse_linux_enterprise_point_of_sale:11.0:sp3:*:*:*:*:*:* |
| novell | suse_linux_enterprise_server | 11.0 | cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp3:*:*:ltss:*:*:* |
| URL | 標籤 |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.html | Third Party Advisory |
| http://www.securityfocus.com/bid/98314 | Third Party Advisory VDB Entry |
| https://bugzilla.suse.com/show_bug.cgi?id=1033948 | Issue Tracking Third Party Advisory VDB Entry |