This update to Mozilla Firefox 50.0.2, Thunderbird 45.5.1 and NSS 3.16.2 fixes a number of security issues.

The following vulnerabilities were fixed in Mozilla Firefox (MFSA 2016-89) :

  - CVE-2016-5296: Heap-buffer-overflow WRITE in     rasterize_edges_1 (bmo#1292443)

  - CVE-2016-5292: URL parsing causes crash (bmo#1288482)

  - CVE-2016-5297: Incorrect argument length checking in     JavaScript (bmo#1303678)

  - CVE-2016-9064: Addons update must verify IDs match     between current and new versions (bmo#1303418)

  - CVE-2016-9066: Integer overflow leading to a buffer     overflow in nsScriptLoadHandler (bmo#1299686)

  - CVE-2016-9067: heap-use-after-free in     nsINode::ReplaceOrInsertBefore (bmo#1301777, bmo#1308922     (CVE-2016-9069))

  - CVE-2016-9068: heap-use-after-free in nsRefreshDriver     (bmo#1302973)

  - CVE-2016-9075: WebExtensions can access the     mozAddonManager API and use it to gain elevated     privileges (bmo#1295324)

  - CVE-2016-9077: Canvas filters allow feDisplacementMaps     to be applied to cross-origin images, allowing timing     attacks on them (bmo#1298552)

  - CVE-2016-5291: Same-origin policy violation using local     HTML file and saved shortcut file (bmo#1292159)

  - CVE-2016-9070: Sidebar bookmark can have reference to     chrome window (bmo#1281071)

  - CVE-2016-9073: windows.create schema doesn't specify     'format': 'relativeUrl' (bmo#1289273)

  - CVE-2016-9076: select dropdown menu can be used for URL     bar spoofing on e10s (bmo#1276976)

  - CVE-2016-9063: Possible integer overflow to fix inside     XML_Parse in expat (bmo#1274777)

  - CVE-2016-9071: Probe browser history via HSTS/301     redirect + CSP (bmo#1285003)

  - CVE-2016-5289: Memory safety bugs fixed in Firefox 50

  - CVE-2016-5290: Memory safety bugs fixed in Firefox 50     and Firefox ESR 45.5

    The following vulnerabilities were fixed in Mozilla NSS     3.26.1 :

  - CVE-2016-9074: Insufficient timing side-channel     resistance in divSpoiler (bmo#1293334)

    Mozilla Firefox now requires mozilla-nss 3.26.2.

    New features in Mozilla Firefox :

  - Updates to keyboard shortcuts Set a preference to have     Ctrl+Tab cycle through tabs in recently used order View     a page in Reader Mode by using Ctrl+Alt+R

  - Added option to Find in page that allows users to limit     search to whole words only

  - Added download protection for a large number of     executable file types on Windows, Mac and Linux

  - Fixed rendering of dashed and dotted borders with     rounded corners (border-radius)

  - Added a built-in Emoji set for operating systems without     native Emoji fonts

  - Blocked versions of libavcodec older than 54.35.1

  - additional locale

    mozilla-nss was updated to 3.26.2, incorporating the     following changes :

  - the selfserv test utility has been enhanced to support     ALPN (HTTP/1.1) and 0-RTT

  - The following CA certificate was added: CN = ISRG Root     X1

  - NPN is disabled and ALPN is enabled by default

  - MD5 signature algorithms sent by the server in     CertificateRequest messages are now properly ignored

Mozilla Foundation reports :

Please reference CVE/URL list for details

The version of Mozilla Firefox installed on the remote Windows host is prior to 50.0. It is, therefore, affected by multiple vulnerabilities, the majority of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities by convincing a user to visit a specially crafted website, resulting in the execution of arbitrary code in the context of the current user.

Mozilla Foundation による報告：

詳細については、CVE/URLリストを参照してください。

このMozilla Firefox 50.0.2、Thunderbird45.5.1、およびNSS 3.16.2への更新により、多数のセキュリティの問題が修正されます。

Mozilla Firefox で、以下の脆弱性が修正されました（MFSA 2016-89）：

  - CVE-2016-5296：rasterize_edges_1でのヒープバッファオーバーフローWRITE（bmo#1292443）

  - CVE-2016-5292：URL解析によりクラッシュが引き起こされます（bmo#1288482）

  - CVE-2016-5297：JavaScriptでの不適切な引数長チェック（bmo#1303678）

  - CVE-2016-9064：アドオン更新は、現在のバージョンと新しいバージョンの間でIDが一致することを検証する必要があります（bmo#1303418）

  - CVE-2016-9066：nsScriptLoadHandlerでのバッファオーバーフローを引き起こす整数オーバーフロー（bmo#1299686）

  - CVE-2016-9067：nsINode：: replaceOrInsertBeforeでのheap-use-after-free（bmo#1301777、bmo#1308922（CVE-2016-9069））

  - CVE-2016-9068：nsRefreshDriverでのheap-use-after-free（bmo#1302973

  - CVE-2016-9075：WebExtensionsはmozAddonManager APIにアクセスし、このAPIを使用して昇格した権限を取得できます（bmo#1295324）

  - CVE-2016-9077：キャンバスフィルターにより、feDisplacementMapsをクロスオリジン画像に適用できるようになり、タイミング攻撃が可能になります（bmo#1298552）

  - CVE-2016-5291：ローカル HTML ファイルと保存されたショートカットファイルを使用する同一生成元ポリシー違反（bmo#1292159）

  - CVE-2016-9070：サイドバーブックマークがchromeウィンドウへのクロムウィンドウへの参照を持つことができます（bmo#1281071）

  - CVE-2016-9073：windows.createスキーマが 'format'：'relativeUrl'を指定しません（bmo#1289273）

  - CVE-2016-9076：選択ドロップダウンメニューが、e10sのURLバーのなりすましに利用可能です（bmo#1276976）

  - CVE-2016-9063：expatのXML_Parse内でを修正する整数オーバーフローの可能性（bmo#1274777）

  - CVE-2016-9071：HSTS/301リダイレクト+ CSPによるブラウザ履歴のプローブ（bmo#1285003）

  - CVE-2016-5289：Firefox 50で修正されたメモリ安全性に関するバグ

  - CVE-2016-5290：Firefox 50とFirefox ESR 45.5で修正されたメモリ安全性に関するバグ

    Mozilla NSS 3.26.1で、以下の脆弱性が修正されました。

  - CVE-2016-9074：divSpoilerでのタイミングサイドチャネルレジスタンスが不十分です（bmo#1293334）

    MozillaFirefoxにmozilla-nss 3.26.2が必要になりました。

    Mozilla Firefox の新機能：

  -キーボードショートカットへの更新。最近使用した順序でCtrl + Tabでタブを切り替えられるように設定します。Ctrl+ Alt + Rを使用してリーダーモードでページを表示しま

  -ページ内検索に、ユーザーが検索対象を完全に一致する単語のみに制限できるオプションが追加されました

  -Windows、Mac、およびLinuxでの多数の実行可能ファイルタイプ対するダウンロード保護が追加されました

  -角丸の破線および点線のレンダリングが修正されました（境界半径）

  - ネイティブの絵文字フォントがないオペレーティングシステム向けの組み込み絵文字セットを追加しました

  - 54.35.1より古いバージョンのlibavcodecはブロックされます

  - 追加ロケール

    mozilla-nssが3.26.2に更新され、次の変更が導入されました：

  - selfservテストユーティリティが拡張され、ALPN（HTTP/1.1）および0-RTTに対応しました

  - 次のCA証明書が追加されました：CN = ISRG Root X1

  - デフォルトでNPNは無効、ALPNは有効です

  - CertificateRequestメッセージでサーバーから送信されたMD5署名アルゴリズムが、適切に無視されるようになりました

リモートのWindowsホストにインストールされているMozilla Firefoxのバージョンが、50.0より前です。したがって、複数の脆弱性による影響を受け、その大部分はリモートでコードが実行される脆弱性です。認証されていないリモートの攻撃者がこれらの脆弱性を悪用し、特別に細工されたWebサイトにアクセスするようユーザーを誘導することで、現在のユーザーのコンテキストで任意のコードを実行する可能性があります。

遠端 Windows 主機上安裝的 Mozilla Firefox 版本比 50.0 舊。因此會受到多個弱點影響，其中大部分是遠端程式碼執行弱點。未經驗證的遠端攻擊者可惡意利用這些弱點，誘騙使用者造訪特製的網站，進而導致在目前使用者的環境中執行任意程式碼。

远程 Windows 主机上安装的 Mozilla Firefox 版本低于 50.0。因此，它会受到多个漏洞的影响，其中多数为远程代码执行漏洞。未经身份验证的远程攻击者可利用这些漏洞，诱使用户访问特制的网站从而导致在当前用户环境中执行任意代码。

Versions of Mozilla Firefox prior to 50.0 are unpatched for the following vulnerabilities :

 - An overflow condition exists in the 'RASTERIZE_EDGES()' function in 'gfx/cairo/libpixman/src/pixman-edge-imp.h'. The issue is triggered as certain input is not properly validated when handling SVG content. This may allow a context-dependent attacker to cause a heap-based overflow, potentially allowing the execution of arbitrary code.
 - A flaw exists in the 'net_CoalesceDirs()' function in 'netwerk/base/nsURLHelper.cpp' that is triggered when handling specially crafted URLs. This may allow a context-dependent attacker to potentially execute arbitrary code.
 - A flaw exists that is triggered when the Mozilla Updater is run with the updater's log file in the working directory pointing to a hardlink. This may allow a local attacker to append data to an arbitrary local file.
 - A flaw exists in the Mozilla Updater that is triggered as it may select an arbitrary target working directory to output files from the update process. No further details have been provided by the vendor.
 - A flaw exists that is triggered when length checking JavaScript arguments. This may allow a context-dependent attacker to have an unspecified impact.
 - A flaw exists that is triggered as add-on update IDs are not properly validated. This may allow an attacker with the ability to intercept network traffic '(e.g'. MitM, DNS cache poisoning) to provide malicious add-on updates.
 - A flaw exists that is triggered when a context-dependent attacker forces a user into full-screen mode, which may potentially allow the attacker to use a fake location bar to perform spoofing attacks.
 - An integer overflow condition exists in the 'nsScriptLoadHandler::TryDecodeRawData()' function in 'dom/base/nsScriptLoader.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to cause a buffer overflow, potentially allowing the execution of arbitrary code.
 - A use-after-free error exists in the 'nsINode::ReplaceOrInsertBefore()' function in 'dom/base/nsINode.cpp' that is triggered when handling certain DOM operations. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in the 'nsINode::Prepend()' function in 'dom/base/nsINode.cpp' that is triggered when handling DOM operations. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in 'nsRefreshDriver'. The issue is triggered when handling web animation timelines. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/plugins/base/nsPluginTags.cpp' that is triggered as the sandbox for 64-bit NPAPI plugins may not be enabled by default. This may potentially result in less secure behavior than intended.
 - A flaw exists in 'toolkit/components/extensions/ExtensionContent.jsm' that is triggered as WebExtensions may inappropriately access the mozAddonManager API. This may allow a context-dependent attacker to use a specially crafted extension to install further extensions without a user's permission.
 - A flaw exists in 'dom/canvas/CanvasRenderingContext2D.cpp' that is triggered by the use of the feDisplacementMap filter on images that are loaded cross-origin. This may allow a context-dependent attacker to conduct a timing attack and have an unspecified impact.
 - A flaw exists in the 'nsBaseChannel::Redirect()' function in 'netwerk/base/nsBaseChannel.cpp'. The issue is triggered as local shortcut files may be used to bypass the same-origin policy and load local content from the disk.
 - A flaw exists in the 'ProcessSoftwareUpdateCommand()' function in 'toolkit/components/maintenanceservice/workmonitor.cpp', as it may copy 'updater.exe' from untrusted directories. This may allow a local attacker to read files with SYSTEM privileges.
 - A flaw exists that is triggered when a page load is disrupted. This may result in the previous page's favicon and SSL indicator persisting, potentially misleading a user about the URL of the page being visited.
 - A flaw exists that is triggered when a previously installed application defines the same signature-level permissions as Firefox. This may allow a local attacker to intercept and disclose AuthTokens intended to be sent to Firefox.
 - A flaw exists that is triggered when a previously installed application defines the same signature-level permissions as Firefox. This may allow a local attacker to intercept and disclose API keys intended to be sent to Firefox.
 - A flaw exists in 'mobile/android/base/java/org/mozilla/gecko/PrivateTab.java' that is triggered, as browsing metadata from private browsing may persist in the 'browser.db' and 'browser.db'-wal files within a Firefox profile. This may potentially allow a physically present attacker to disclose information about private browsing.
 - A flaw exists in 'dom/bindings/Codegen.py' that is triggered when loading pages in a sidebar via a bookmark. This may allow the page to reference a privileged chrome window, violating the same-origin policy and engaging in limited JavaScript operations.
 - A flaw exists that is triggered as the 'windows.create' schema doesn't specify "format": "relativeUrl". This may allow a context-dependent attacker to escape the WebExtension sandbox.
 - An unspecified flaw exists in 'divSpoiler' that may allow an attacker to conduct a side-channel attack. No further details have been provided by the vendor.
 - A flaw exists that is triggered as the "select" dropdown menu may potentially cover location bar content, allowing a context-dependent attacker to spoof the location bar.
 - An integer overflow condition exists in the 'XML_Parse()' function in 'parser/expat/lib/xmlparse.c'. The issue is triggered as certain input is not properly validated when parsing XML content. This may allow a context-dependent attacker to have an unspecified impact.
 - A flaw exists in the 'nsCSPHostSrc::permits()' function in 'dom/security/nsCSPUtils.cpp' that is triggered when the Content Security Policy (CSP) is combined with HTTP to HTTPS redirection. This may potentially allow a context-dependent attacker to enumerate the existence of a known site in a user's browser history.
 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'EventListenerManager::GetListenerInfo()' function in 'dom/events/EventListenerManager.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists in 'dom/media/mediasource/TrackBuffersManager.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'WebrtcVideoConduit::CodecConfigToWebRTCCodec()' function in 'media/webrtc/signaling/src/media-conduit/VideoConduit.cpp' that is triggered when handling simulcast streams. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists in 'js/src/jit/arm64/MacroAssembler-arm64.h' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exist that is triggered when handling screen/window/app capture. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists related to MessagePort not supporting transferable objects. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists that is triggered when handling DOM tree operations for 'insertBefore()' method calls. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists that is triggered when handling Ion-compiling of scripts with too many typesets. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists related to tracing of script pointers in off-thread compilation tasks. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists that is triggered when handling runtime checks for helper threads tracing. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'GlobalHelperThreadState::finishParseTask()' function in 'js/src/vm/HelperThreads.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists that is triggered as certain input is not properly validated when handling frames. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists that is triggered as certain input is not properly validated when handling HTML5 tokenizing. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists in 'dom/events/IMEStateManager.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'JSStructuredCloneWriter::transferOwnership()' function in 'js/src/vm/StructuredClone.cpp' that is triggered when handling user-defined structured clone tags. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.

ID	名稱	產品	系列	已發布	已更新	嚴重性
95590	openSUSE Security Update : Mozilla Firefox / Thunderbird and NSS (openSUSE-2016-1407)	Nessus	SuSE Local Security Checks	2016/12/7	2023/6/22	critical
94904	FreeBSD : mozilla -- multiple vulnerabilities (d1853110-07f4-4645-895b-6fd462ad0589)	Nessus	FreeBSD Local Security Checks	2016/11/16	2021/1/4	critical
94960	Mozilla Firefox < 50.0 Multiple Vulnerabilities	Nessus	Windows	2016/11/18	2019/11/14	critical
94904	FreeBSD: mozilla -- 複数の脆弱性（d1853110-07f4-4645-895b-6fd462ad0589）	Nessus	FreeBSD Local Security Checks	2016/11/16	2021/1/4	critical
95590	openSUSEセキュリティ更新プログラム：Mozilla Firefox / ThunderbirdおよびNSS（openSUSE-2016-1407）	Nessus	SuSE Local Security Checks	2016/12/7	2023/6/22	critical
94960	Mozilla Firefox < 50.0の複数の脆弱性	Nessus	Windows	2016/11/18	2019/11/14	critical
94960	Mozilla Firefox < 50.0 多個弱點	Nessus	Windows	2016/11/18	2019/11/14	critical
94960	Mozilla Firefox < 50.0 多个漏洞	Nessus	Windows	2016/11/18	2019/11/14	critical
9804	Mozilla Firefox < 50.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2016/12/2	2019/3/6	high

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