The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of service (crash) or read sensitive heap information via a crafted blkiotune query, which triggers an out-of-bounds read.
結論預警: CVE-2014-3633 綜合評估為中等風險（52.5/100）：CVSS 技術影響為中級，利用機率（EPSS 2.75%） 強制指令: 梳理受影響資產並納入修補計畫。
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 | 2.92% | 2.75% | -0.17% |
| 2 | 2026-01-02 | 3.70% | 2.92% | -0.78% |
| 3 | 2025-12-28 | — | 3.70% | — |
完整 EPSS 歷史 （共 16 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 |
|---|---|---|---|---|---|---|
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-3633 not yet assigned priority: Debian including 1 source packages (libvirt), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-3633 |
gentoo
|
high | CVE-2014-3633: 1 GLSA(s) (201412-04), 1 atom(s) (app-emulation/libvirt); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-3633 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2014-3633 |
suse
|
medium | CVE-2014-3633 severity moderate: SUSE including 391 source package names (kvm-1.4.2-0.21.4, kvm-1.4.2-0.21.5, …), 775 product×package rows across 47 product lines (HPE Helion OpenStack 8, SUSE Liberty Linux 7, … (47 product lines)): Fixed 563, Known Not Affected 212. | https://www.suse.com/security/cve/CVE-2014-3633/ |
ubuntu
|
medium | CVE-2014-3633 medium priority: Ubuntu including 1 source packages (libvirt), 4 status rows across 4 suites (lucid, precise, trusty, upstream): released 2, needed 1, not-affected 1. | https://ubuntu.com/security/CVE-2014-3633 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| canonical | ubuntu_linux | 10.04 | cpe:2.3:o:canonical:ubuntu_linux:10.04:*:lts:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:lts:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| libvirt | libvirt | <= 1.2.8 | cpe:2.3:a:libvirt:libvirt:*:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.0 | cpe:2.3:a:libvirt:libvirt:1.2.0:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.1 | cpe:2.3:a:libvirt:libvirt:1.2.1:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.2 | cpe:2.3:a:libvirt:libvirt:1.2.2:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.3 | cpe:2.3:a:libvirt:libvirt:1.2.3:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.4 | cpe:2.3:a:libvirt:libvirt:1.2.4:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.5 | cpe:2.3:a:libvirt:libvirt:1.2.5:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.6 | cpe:2.3:a:libvirt:libvirt:1.2.6:*:*:*:*:*:*:* |
| libvirt | libvirt | 1.2.7 | cpe:2.3:a:libvirt:libvirt:1.2.7:*:*:*:*:*:*:* |