CVE-2012-4538

The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.

公開: 2012-11-24 最後更新: 2026-06-16 指派方: [email protected] 來源: [email protected]

結論預警: CVE-2012-4538 綜合評估為低風險(32.3/100):CVSS 技術影響為中級,利用機率偏低(EPSS 0.44%) 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。

CVE-2012-4538 的 EPSS(利用預測評分)

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% 0.44% +0.38%
2 2023-03-07 1.55% 0.06% -1.48%
3 2022-02-04 1.55%

完整 EPSS 歷史 (共 3 筆)

CVE-2012-4538 的 CVSS 指標

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
4.9 2.0 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C 點擊展開
存取路徑 (AV:L)
需本機登入或本機互動,僅遠端觸達不足以單獨完成利用。
存取複雜度 (AC:L)
步驟短、路徑清楚,重現成本低。
認證 (AU:N)
全程無需有效身分。
機密性影響 (C:N)
對機密性無影響。
完整性影響 (I:N)
對完整性無影響。
可用性影響 (A:C)
可用性被完全破壞。
3.9 6.9 [email protected]

CVE-2012-4538 的弱點列舉

CVE-2012-4538 的 OS 追蹤

vendor priority summary link
debian not yet assigned CVE-2012-4538 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-2012-4538
gentoo normal CVE-2012-4538: 2 GLSA(s) (201309-24, 201604-03), 4 atom(s) (app-emulation/pvgrub, app-emulation/xen, app-emulation/xen-pvgrub, app-emulation/xen-tools); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-4538
redhat medium https://access.redhat.com/security/cve/CVE-2012-4538
ubuntu medium CVE-2012-4538 medium priority: Ubuntu including 4 source packages (xen, xen-3.1, xen-3.2, xen-3.3), 24 status rows across 6 suites (hardy, lucid, oneiric, precise, quantal, upstream): DNE 14, not-affected 6, released 3, needed 1. https://ubuntu.com/security/CVE-2012-4538

CVE-2012-4538 的影響軟體 / 設定

廠商 產品 版本 原始 CPE
xen xen 4.0.0 cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
xen xen 4.1.0 cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
xen xen 4.2.0 cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*

CVE-2012-4538 的參考連結

URL 標籤
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
http://lists.xen.org/archives/html/xen-announce/2012-11/msg00004.html Vendor Advisory
http://osvdb.org/87306
http://secunia.com/advisories/51200
http://secunia.com/advisories/51324
http://secunia.com/advisories/51352
http://secunia.com/advisories/51413
http://secunia.com/advisories/51468
http://secunia.com/advisories/55082
http://security.gentoo.org/glsa/glsa-201309-24.xml
http://www.debian.org/security/2012/dsa-2582
http://www.openwall.com/lists/oss-security/2012/11/13/3
http://www.securityfocus.com/bid/56498
http://www.securitytracker.com/id?1027762
https://exchange.xforce.ibmcloud.com/vulnerabilities/80025
https://security.gentoo.org/glsa/201604-03
cvelogic Threat Intelligence