出典：Red Hatセキュリティアドバイザリ2016:2973：thunderbirdの更新プログラムが、Red Hat Enterprise Linux 5、Red Hat Enterprise Linux 6、Red Hat Enterprise Linux 7で利用可能になりました。Red Hat製品セキュリティは、この更新がセキュリティに及ぼす影響を重要度高と評価しています。詳細な重要度評価を示すCVSS（共通脆弱性評価システム）ベーススコアは、「参照」セクションのCVEリンクから脆弱性ごとに入手できます。Mozilla Thunderbirdはスタンドアロンのメールおよびニュースグループクライアントです。この更新プログラムで、Thunderbirdをバージョン45.6.0にアップグレードします。セキュリティ修正プログラム：* 不正な形式のWebコンテンツの処理に、複数の欠陥が見つかりました。悪意あるコンテンツを含むWebページにより、Thunderbirdをクラッシュさせたり、Thunderbirdを実行しているユーザーの権限で任意のコードが実行されたりする可能性があります。（CVE-2016-9893、CVE-2016-9899、CVE-2016-9895、CVE-2016-9900、CVE-2016-9901、CVE-2016-9902、CVE-2016-9905）Red Hatは、これらの問題を報告してくれたMozillaプロジェクトに感謝の意を表します。アップストリームは、Wladimir Palant氏、Philipp氏、Andrew Krasichkov氏、insertscript氏、Jan de Mooij氏、Iris Hsiao氏、Christian Holler氏、Carsten Book氏、Timothy Nikkel氏、Christoph Diehl氏、Olli Pettay氏、Raymond Forbes氏、Boris Zbarsky氏を最初の報告者として認識しています。

MozillaFirefox 45 ESRが45.6に更新され、次の問題が修正されました：

  - MFSA 2016-95/CVE-2016-9897：libGLESでのメモリ破損

  - MFSA 2016-95/CVE-2016-9901：実行前にPocketサーバーからのデータが不適切にサニタイズされる

  - MFSA 2016-95/CVE-2016-9898：DOMサブツリー操作中のエディターでのメモリ解放後使用（Use After Free）

  - MFSA 2016-95/CVE-2016-9899：DOMのイベントとオーディオの要素を操作するときのメモリ解放後使用（Use After Free）

  - MFSA 2016-95/CVE-2016-9904：共有アトムでのクロスオリジン情報漏洩

  - MFSA 2016-95/CVE-2016-9905：EnumerateSubDocumentsでのクラッシュ

  - MFSA 2016-95/CVE-2016-9895: marqueeタグを使用するCSPバイパス

  - MFSA 2016-95/CVE-2016-9900：制限された外部リソースが、データURLを介してSVG画像によってロードされる可能性があります

  - MFSA 2016-95/CVE-2016-9893：Firefox 50.1とFirefox ESR 45.6で修正されたメモリ安全性に関するバグ

  - MFSA 2016-95/CVE-2016-9902：Pocket拡張機能がイベントのオリジンを検証しません。詳細についてはhttps://www.mozilla.org/en-US/security/advisories/mfsa2016-95/を参照してください。

  -32ビットシステムでのfontconfigの問題（bsc#1000751）も修正します。

注意：Tenable Network Securityは、前述の記述ブロックをSUSEセキュリティアドバイザリから直接抽出しています。Tenableでは、新たな問題を持ち込まずに、できる限り自動的に整理して書式設定するようにしています。

Versions of Mozilla Firefox ESR earlier than 45.6 are unpatched for the following vulnerabilities :

 - A flaw exists in the 'GetNPObjectWrapper()' function in 'dom/plugins/base/nsJSNPRuntime.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. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'ObjectGroup::defaultNewGroup()' function in 'js/src/vm/ObjectGroup.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 that is triggered as certain input is not properly validated when handling HTML5 content. With a specially crafted web page, a context-dependent attacker can corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists in the 'nsDocShell::RestoreFromHistory()' function in 'docshell/base/nsDocShell.cpp'. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists in the 'Factory::CreateDrawTargetForData()' function in 'gfx/2d/Factory.cpp'. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/media/MediaRecorder.cpp' that is triggered when handling a document's activity state changes. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'nsHttpChunkedDecoder::ParseChunkRemaining()' function in 'netwerk/protocol/http/nsHttpChunkedDecoder.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 use-after-free error exists that is triggered when handling media content. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists in the 'nsDocument::EnumerateSubDocuments()' function in 'dom/base/nsDocument.cpp' that is triggered when adding and removing sub-documents. With a specially crafted web page, a context-dependent attacker can corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/bindings/BindingUtils.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.
 - A use-after-free error exists in 'editor/libeditor/HTMLEditor.cpp' that is triggered when handling DOM subtrees. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists in the 'VaryingPacking::packVarying()' function in 'libANGLE/renderer/d3d/hlsl/VaryingPacking.cpp'. This may allow a context-dependent attacker to corrupt memory and crash a process linked against the library or potentially execute arbitrary code.
 - A use-after-free error exists in the 'nsNodeUtils::CloneAndAdopt()' function in 'dom/base/nsNodeUtils.cpp' that is triggered when handling failing node adoption. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is triggered as event handlers for marquee elements are executed despite restrictions against inline JavaScript. This may allow a context-dependent attacker to bypass the Content Security Policy (CSP).
 - A flaw exists in the 'nsDataDocumentContentPolicy::ShouldLoad()' function in 'dom/base/nsDataDocumentContentPolicy.cpp', as external resources may be inappropriately loaded by SVG images by utilizing 'data: URLs'. This may allow a context-dependent attacker to disclose potentially sensitive cross-domain information.
 - A flaw exists that is triggered as HTML tags from the Pocket server are not properly sanitized before use. This may allow a context-dependent attacker to inject content and gain access to the Pocket Messaging API.
 - A flaw exists in 'browser/extensions/pocket/content/main.js' related to the Pocket toolbar button, as it fails to properly verify the origin of events. This may potentially allow a context-dependent attacker to execute commands from other contexts.
 - A flaw exists that is triggered as atom information may be exposed. This may allow a context-dependent attacker to use a JavaScript Map/Set timing attack to determine if atoms are used by other compartments or zones, potentially disclosing cross-domain information.

Versions of Mozilla Firefox prior to 50.1 are unpatched for the following vulnerabilities :

 - A flaw exists in 'layout/style/nsRuleNode.cpp' that is triggered when handling style contexts. With a specially crafted web page, a context-dependent attacker can corrupt memory and potentially execute arbitrary code.
 - An overflow condition exists in the 'GrResourceProvider::createBuffer()' function in 'gfx/skia/skia/src/gpu/GrResourceProvider.cpp'. This may allow a context-dependent attacker to cause a buffer overflow, potentially allowing the execution of arbitrary code.
 - A flaw exists that is triggered as certain input is not properly validated when handling regular expressions. 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 clamped gradients. This may allow a context-dependent attacker to corrupt memory and crash a process linked against the library or potentially execute arbitrary code.
 - A flaw exists in the 'GetNPObjectWrapper()' function in 'dom/plugins/base/nsJSNPRuntime.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. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'ObjectGroup::defaultNewGroup()' function in 'js/src/vm/ObjectGroup.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 that is triggered as certain input is not properly validated when handling HTML5 content. With a specially crafted web page, a context-dependent attacker can corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists in the 'nsDocShell::RestoreFromHistory()' function in 'docshell/base/nsDocShell.cpp'. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists in the 'Factory::CreateDrawTargetForData()' function in 'gfx/2d/Factory.cpp'. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/media/MediaRecorder.cpp' that is triggered when handling a document's activity state changes. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'nsHttpChunkedDecoder::ParseChunkRemaining()' function in 'network/protocol/http/nsHttpChunkedDecoder.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 use-after-free error exists that is triggered when handling media content. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/bindings/BindingUtils.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.
 - A flaw exists that allows a universal cross-site scripting (UXSS) attack. This flaw exists because 'addon-sdk/source/lib/sdk/ui/frame/view.html' and 'addon-sdk/source/lib/sdk/ui/frame/view.js' within the Add-ons SDK do not properly validate input before returning it to users. This may allow a context-dependent attacker to create a specially crafted request that would execute arbitrary script code in a user's browser session within the trust relationship between their browser and an add-on.
 - A use-after-free error exists in the handling of navigator objects within WebVR. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in 'editor/libeditor/HTMLEditor.cpp' that is triggered when handling DOM subtrees. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists in the 'VaryingPacking::packVarying()' function in 'libANGLE/renderer/d3d/hlsl/VaryingPacking.cpp'. This may allow a context-dependent attacker to corrupt memory and crash a process linked against the library or potentially execute arbitrary code.
 - A use-after-free error exists in the 'nsNodeUtils::CloneAndAdopt()' function in 'dom/base/nsNodeUtils.cpp' that is triggered when handling failing node adoption. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is triggered as event handlers for marquee elements are executed despite restrictions against inline JavaScript. This may allow a context-dependent attacker to bypass the Content Security Policy (CSP).
 - A flaw exists in the 'nsDataDocumentContentPolicy::ShouldLoad()' function in 'dom/base/nsDataDocumentContentPolicy.cpp', as external resources may be inappropriately loaded by SVG images by utilizing 'data: URLs'. This may allow a context-dependent to disclose potentially sensitive cross-domain information.
 - A flaw exists that is triggered as HTML tags from the Pocket server are not properly sanitized before use. This may allow a context-dependent attacker to inject content and gain access to the Pocket Messaging API.
 - A flaw exists in 'browser/extensions/pocket/content/main.js' related to the Pocket toolbar button, as it fails to properly verify the origin of events. This may potentially allow a context-dependent attacker to execute commands from other contexts.
 - A flaw exists that is triggered as atom information may be exposed. This may allow a context-dependent attacker to use a JavaScript Map/Set timing attack to determine if atoms are used by other compartments or zones, potentially disclosing cross-domain information.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
96065	Oracle Linux 6/7：thunderbird（ELSA-2016-2973）	Nessus	Oracle Linux Local Security Checks	2016/12/22	2021/1/14	critical
96083	SUSE SLES11セキュリティ更新プログラム：MozillaFirefox（SUSE-SU-2016:3223-1）	Nessus	SuSE Local Security Checks	2016/12/22	2021/1/19	critical
9853	Mozilla Firefox ESR < 45.6 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2017/1/5	2019/11/6	high
9851	Mozilla Firefox < 50.1 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2017/1/5	2019/3/6	high

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