CVE-2016-1836

Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to cause a denial of service via a crafted XML document.

公開： 2016-05-20 最後更新： 2026-06-16 指派方： [email protected] 來源： [email protected]
NVD 狀態：Modified，CVE 狀態： published
檢視： NVD, CVE.org, EUVD

CVE-2016-1836 綜合評估為中等風險（53.3/100）：CVSS 技術影響為中級，利用機率（EPSS 3.93%） 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。

CVE-2016-1836 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 2026-07-02 3.80% 3.93% +0.13%
2 2026-06-15 1.31% 3.80% +2.49%
3 2026-05-12 — 1.31% —

完整 EPSS 歷史 （共 48 筆）

CVE-2016-1836 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
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H 點擊展開
攻擊向量 (AV:L)
需先取得主機上的執行面，或仰賴其他使用者誤操作／惡意操作才會觸發。
攻擊複雜度 (AC:L)
前置條件清楚，成功路徑穩定，不必仰賴罕見競態或極端環境。
權限需求 (PR:N)
不必事先登入或提權，匿名工作階段也可能成為跳板。
使用者互動 (UI:R)
需要一次明確的使用者動作（安裝、改設定、開啟惡意文件等）才會落地。
作用域 (S:U)
破壞局限在脆弱元件原本的安全權限與信任域之內。
機密性影響 (C:N)
幾乎談不上實質的敏感資料外洩。
完整性影響 (I:N)
對紀錄真實性與不可否認性的破壞可忽略。
可用性影響 (A:H)
可造成長時間中斷、關鍵交易無法完成，或伴隨資料毀損導致難以自癒。
 1.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P 點擊展開
存取路徑 (AV:N)
只要路由可達，即可從遠端發動利用。
存取複雜度 (AC:M)
需要若干有利條件，但不必「千年一遇」。
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:P)
可用性受到部分損害。
 8.6 2.9 [email protected]

CVE-2016-1836 的弱點列舉

CVE-2016-1836 的 OS 追蹤

vendor priority summary link
debian not yet assigned CVE-2016-1836 not yet assigned priority: Debian including 1 source packages (libxml2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-1836
gentoo normal CVE-2016-1836: 1 GLSA(s) (201701-37), 1 atom(s) (dev-libs/libxml2); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-1836
redhat medium — https://access.redhat.com/security/cve/CVE-2016-1836
suse medium CVE-2016-1836 severity moderate: SUSE including 120 source package names (libxml2, libxml2-2, …), 283 product×package rows across 67 product lines (HPE Helion OpenStack 8, Magnum Orchestration 7, … (67 product lines)): Fixed 146, Known Not Affected 137. https://www.suse.com/security/cve/CVE-2016-1836/
ubuntu medium CVE-2016-1836 medium priority: Ubuntu including 1 source packages (libxml2), 7 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): released 4, not-affected 3. https://ubuntu.com/security/CVE-2016-1836

CVE-2016-1836 的影響軟體 / 設定

廠商 產品 版本 原始 CPE
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:*:*:*
canonical ubuntu_linux 15.10 cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
apple iphone_os < 9.3.2 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple mac_os_x < 10.11.5 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple tvos < 9.2.1 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple watchos < 2.2.1 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.5 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
xmlsoft libxml2 < 2.9.4 cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
mcafee web_gateway >= 7.5.0.0, <= 7.5.2.10 cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
mcafee web_gateway >= 7.6.0.0, <= 7.6.2.3 cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*

CVE-2016-1836 的參考連結

URL 標籤
http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html Mailing List Not Applicable Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/May/msg00001.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/May/msg00003.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html Mailing List Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2957.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Third Party Advisory
http://www.securityfocus.com/bid/90691 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1035890 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2994-1 Third Party Advisory
http://xmlsoft.org/news.html Release Notes Vendor Advisory
https://access.redhat.com/errata/RHSA-2016:1292 Third Party Advisory
https://bugzilla.gnome.org/show_bug.cgi?id=759398 Permissions Required Third Party Advisory
https://git.gnome.org/browse/libxml2/commit/?id=45752d2c334b50016666d8f0ec3691e2d680f0a0 Patch Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10170 Patch Third Party Advisory
https://security.gentoo.org/glsa/201701-37 Third Party Advisory
https://support.apple.com/HT206564 Vendor Advisory
https://support.apple.com/HT206566 Vendor Advisory
https://support.apple.com/HT206567 Vendor Advisory
https://support.apple.com/HT206568 Vendor Advisory
https://support.apple.com/HT206899 Vendor Advisory
https://support.apple.com/HT206901 Vendor Advisory
https://support.apple.com/HT206902 Vendor Advisory
https://support.apple.com/HT206903 Vendor Advisory
https://support.apple.com/HT206904 Vendor Advisory
https://support.apple.com/HT206905 Vendor Advisory
https://www.debian.org/security/2016/dsa-3593 Third Party Advisory
https://www.tenable.com/security/tns-2016-18 Third Party Advisory
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