Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.
結論預警: CVE-2014-0147 綜合評估為低風險（33.6/100）：CVSS 技術影響為中級，利用機率偏低（EPSS 0.33%） 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 | 0.13% | 0.33% | +0.20% |
| 2 | 2025-10-01 | 0.15% | 0.13% | -0.02% |
| 3 | 2025-09-30 | — | 0.15% | — |
完整 EPSS 歷史 （共 12 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 |
|---|---|---|---|---|---|---|
| 6.2 | 3.1 | MEDIUM |
|
2.5 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-0147 not yet assigned priority: Debian including 1 source packages (qemu), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-0147 |
gentoo
|
high | CVE-2014-0147: 1 GLSA(s) (201408-17), 1 atom(s) (app-emulation/qemu); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-0147 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2014-0147 |
suse
|
medium | CVE-2014-0147 severity moderate: SUSE including 293 source package names (kvm, kvm-1.4.2-0.11.1, …), 1057 product×package rows across 75 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.5, … (75 product lines)): Known Not Affected 727, Fixed 330. | https://www.suse.com/security/cve/CVE-2014-0147/ |
ubuntu
|
medium | CVE-2014-0147 medium priority: Ubuntu including 2 source packages (qemu, qemu-kvm), 12 status rows across 6 suites (lucid, precise, quantal, saucy, trusty, upstream): DNE 5, released 3, ignored 2, needs-triage 1, not-affected 1. | https://ubuntu.com/security/CVE-2014-0147 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| qemu | qemu | < 1.6.2 | cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 20 | cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* |
| redhat | virtualization | 3.0 | cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 6.5 | cpe:2.3:o:redhat:enterprise_linux_eus:6.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_openstack_platform | 5 | cpe:2.3:o:redhat:enterprise_linux_openstack_platform:5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 6.5 | cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 6.5 | cpe:2.3:o:redhat:enterprise_linux_server_tus:6.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=246f65838d19db6db55bfb41117c35645a2c4789 | |
| http://rhn.redhat.com/errata/RHSA-2014-0420.html | Third Party Advisory |
| http://rhn.redhat.com/errata/RHSA-2014-0421.html | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2014/03/26/8 | Mailing List Patch Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1078848 | Issue Tracking Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1086717 | Issue Tracking Third Party Advisory |