現已提供適用於 Slackware 14.1、14.2 和最新版本的新 mozilla-thunderbird 套件，可修正多個安全性問題。

在 Mozilla Firefox 網頁瀏覽器中發現多個安全性問題：存在多個記憶體安全錯誤、釋放後使用和其他實作錯誤，可能會導致執行任意程式碼、資訊洩漏或權限提升。針對 Debian 7「Wheezy」，這些問題已在 45.7.0esr-1~deb7u1 版本中修正。建議您升級 firefox-esr 套件。注意：Tenable Network Security 已直接從 DLA 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

遠端 macOS 或 Mac OS X 主機上安裝的 Mozilla Thunderbird 版本比 45.7 舊。因此，會受到多個弱點影響：- Mozilla 開發人員與社群人員 Christian Holler、Gary Kwong、Andre Bargull、Jan de Mooij、Tom Schuster 和 Oriol 報告 Thunderbird 45.6 版中出現記憶體安全錯誤。某些錯誤顯示記憶體會遭到損毀，我們推測若有心人士有意操控，可惡意利用其中部分錯誤執行任意程式碼。(CVE-2017-5373) - JIT 程式碼配置可允許繞過 ASLR 和 DEP 保護，造成潛在的記憶體損毀攻擊。(CVE-2017-5375) - 操控 XSLT 文件中的 XSL 時出現釋放後使用錯誤。(CVE-2017-5376) - 有兩個頁面共用 JavaScript 物件的雜湊程式碼。這會造成指標遺失，因為可以透過雜湊程式碼發現物件的位址，還會造成使用這些雜湊程式碼的物件內容資料外洩。(CVE-2017-5378) - 在 DOM 操控 SVG 內容期間，透過模糊測試發現潛在的釋放後使用弱點。(CVE-2017-5380) - 含有特定 unicode 字符用於替代連字號和引號的 URL 無法正確觸發 punycode 顯示，使得可以在位址列中發動網域名稱偽造攻擊。(CVE-2017-5383) - 開發人員工具中的 JSON 檢視器使用不安全的方法建立通訊通道，用以複製和檢視 JSON 或 HTTP 標頭資料，造成潛在的權限提升弱點。(CVE-2017-5390) - 若是在記憶體釋放媒體元素後觸發若干事件，在使用媒體檔案時，媒體解碼器中存在一個釋放後使用弱點。(CVE-2017-5396) 請注意，Tenable Network Security 已直接從 Mozilla 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

遠端主機受到 GLSA-201702-13 中所述的弱點影響 (Mozilla Thunderbird：多個弱點) 在 Mozilla Thunderbird 中發現多個弱點。如需詳細資訊，請檢閱以下提及的 CVE 識別碼。影響：遠端攻擊者可引誘使用者開啟特製的電子郵件或網頁，並可能以處理程序的權限執行任意程式碼，或造成拒絕服務情形。因應措施：目前尚無已知的因應措施。

遠端主機受到 GLSA-201702-22 中所述的弱點影響 (Mozilla Firefox：多個弱點) 在 Mozilla Firefox 中發現多個弱點。如需詳細資訊，請檢閱以下提及的 CVE 識別碼。影響：遠端攻擊者可能以處理程序的權限執行任意程式碼、造成拒絕服務情況、繞過存取限制、存取其他受保護的資訊或透過多個向量偽造內容。因應措施：目前尚無已知的因應措施。

在 Thunderbird 中發現多個安全性問題，可能會導致執行任意程式碼或資訊洩漏。此更新將 Icedove 套件品牌撤銷，替換回官方 Mozilla 品牌。移除 Debian 品牌時，套件亦隨之更名，恢復 Mozilla 使用的官方名稱。Thunderbird 套件使用的是不同的預設設定檔資料夾，現在的預設設定檔資料夾是「\$(HOME)/.thunderbird」。Icedove 中使用的使用者設定檔資料夾會在初次啟動時移轉為新的設定檔資料夾，整個過程需花多一點時間完成。有關詳細的異動資訊，請參閱 README.Debian。

Versions of Mozilla Firefox ESR earlier than 45.7 are unpatched for the following vulnerabilities :

 - A flaw exists in JIT code allocation that may allow a context-dependent attacker to bypass the Data Execution Protection (DEP) and Address Space Layout Randomization (ASLR) protection mechanisms.
 - A use-after-free error exists in the 'txExecutionState::getVariable()' function in 'dom/xslt/xslt/txExecutionState.cpp' that is triggered when handling XSL in XSLT documents. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is due to the program sharing hashed codes of JavaScripts objects between pages. This may allow a context-dependent attacker to gain access to potentially sensitive data by discovering the object's address through a pointer leak.
 - A use-after-free error exists in the 'PresShell::FlushPendingNotifications()' function in 'layout/base/PresShell.cpp' that is triggered during DOM manipulation of SVG content. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is due to the JSON viewer in the Developer Tools insecurely creating communication channels for copying and viewing JSON or HTTP headers. This may allow an attacker with the ability to intercept network traffic (e.g. MitM, DNS cache poisoning) can disclose and optionally manipulate transmitted data.
 - A flaw exists in the 'ICCallStubCompiler::guardFunApply()' function in 'js/src/jit/BaselineIC.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 'IonBuilder::createThisScriptedSingleton()' function in 'js/src/jit/IonBuilder.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 'AddLazyFunctionsForCompartment()' function in 'js/src/jscompartment.cpp' that is triggered when handling references to a compartment's lazy functions. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'js::DefineTypedArrayElement()' function in 'js/src/vm/TypedArrayObject.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 'DataViewObject::create()' function in 'js/src/vm/TypedArrayObject.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 'IonBuilder::initEnvironmentChain()' function in 'js/src/jit/IonBuilder.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 the JavaScript JIT compiler that is triggered when handling windows. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'nsDOMConstructor::HasInstance()' function in 'dom/base/nsDOMClassInfo.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 flaw exists in the 'nsDocument::SetScriptGlobalObject()' function in 'dom/base/nsDocument.cpp' that is triggered when handling specially crafted media files. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is triggered during the handling of a specially crafted URL that contains certain unicode glyphs for alternative hyphens and quotes. This may allow a context-dependent attacker to spoof the location bar.
 - A flaw exists that may allow WebExtension scripts to use the 'data: protocol' to affect pages loaded by other extensions. This may allow a context-dependent attacker to potentially disclose sensitive information or gain elevated privileges related to other extensions.

Versions of Mozilla Firefox prior to 51 are unpatched for the following vulnerabilities :

 - A flaw exists in JIT code allocation that may allow a context-dependent attacker to bypass the Data Execution Protection (DEP) and Address Space Layout Randomization (ASLR) protection mechanisms.
 - A use-after-free error exists in the 'txExecutionState::getVariable()' function in 'dom/xslt/xslt/txExecutionState.cpp' that is triggered when handling XSL in XSLT documents. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is due to the program sharing hashed codes of JavaScript objects between pages. This may allow a context-dependent to gain access to potentially sensitive data by discovering the object's address through a pointer leak.
 - A use-after-free error exists in the 'nsDocument::GetAnimations()' function in 'dom/base/nsDocument.cpp' that is triggered when handling web animations. 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 'PresShell::FlushPendingNotifications()' function in 'layout/base/PresShell.cpp' that is triggered during DOM manipulation of SVG content. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is due to the JSON viewer in the Developer Tools insecurely creating communication channels for copying and viewing JSON or HTTP headers. This may allow an attacker with the ability to intercept network traffic (e.g. MitM, DNS cache poisoning) can disclose and optionally manipulate transmitted data.
 - A flaw exists in the 'mozAddonManager' API that may allow a WebExtension attacker to modify CSP headers. This may allow a context-dependent attacker to use a host request to redirect script load to a malicious site, where it will install additional extensions without the user's consent.
 - A flaw exists in the 'RangeAnalysis::addBetaNodes()' function in 'js/src/jit/RangeAnalysis.cpp' related to improper comparisons being performed when adding beta nodes. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/media/DOMMediaStream.cpp' that is triggered when handling media stream tracks. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'Library::Create()' function in 'js/src/ctypes/Library.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 'Library::Create()' function in 'js/src/ctypes/Library.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/workers/ServiceWorkerRegistration.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 'nsAttrAndChildArray::GrowBy()' function in 'dom/base/nsAttrAndChildArray.cpp' related to a missing return value check. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'AppendUTF16toUTF8()' function in 'xpcom/string/nsReadableUtils.cpp' that is triggered when handling certain size calculations. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'xpcom/string/nsTSubstringTuple.cpp' that is triggered when handling substring tuble lengths. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An integer overflow condition exists in the 'RTCPPacketInformation::AddApplicationData()' function in 'webrtc/modules/rtp_rtcp/source/rtcp_receiver_help.cc' that is triggered when handling RTCP APP packets. 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.
 - An unspecified flaw exists in 'dom/base/WebSocket.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 'GetDatabaseFileURL()' function in 'dom/indexedDB/ActorsParent.cpp' that is triggered when handling file: URIs. 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 'gfx/2d/PathRecording.h' that is triggered when handling event recorders. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'ICCallStubCompiler::guardFunApply()' function in 'js/src/jit/BaselineIC.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 'IonBuilder::createThisScriptedSingleton()' function in 'js/src/jit/IonBuilder.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 'AddLazyFunctionsForCompartment()' function in 'js/src/jscompartment.cpp' that is triggered when handling references to a compartment's lazy functions. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'js::DefineTypedArrayElement()' function in 'js/src/vm/TypedArrayObject.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 'DataViewObject::create()' function in 'js/src/vm/TypedArrayObject.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 'IonBuilder::initEnvironmentChain()' function in 'js/src/jit/IonBuilder.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 the JavaScript JIT compiler that is triggered when handling windows. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'nsDOMConstructor::HasInstance()' function in 'dom/base/nsDOMClassInfo.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 flaw exists in the 'nsDocument::SetScriptGlobalObject()' function in 'dom/base/nsDocument.cpp' that is triggered when handling specially crafted media files. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists in 'security/manager/pki/resources/content/pippki.js' that allows traversing outside of a restricted path. The issue is due to the export functions in the certificate viewer not properly sanitizing user input, specifically path traversal style attacks (e.g. '../'). This may allow a context-dependent attacker to make changes to the save destination for certificate content.
 - A flaw exists that may allow a remote attacker to use the preview feature for RSS feeds to view potentially sensitive privileged content errors and exceptions.
 - A flaw exists that is triggered during the handling of a specially crafted URL that contains certain unicode glyphs for alternative hyphens and quotes. This may allow a context-dependent attacker to spoof the location bar.
 - A flaw exists that is triggered during the handling of a specially crafted Proxy Auto-Config (PAC) file. This file may potentially specify which JavaScript function is called for URL requests, allowing a context-dependent attacker to gain access to potentially sensitive information.
 - A flaw exists in 'dom/base/nsDocument.cpp' that is triggered as data sent with multipart channels, such as the multipart/x-mixed-replace MIME type, ignores the bypass referrer-policy response header. This may allow a context-dependent attacker to and gain access to sensitive information related to sites using the header.
 - A flaw exists that may allow WebExtension scripts to use the 'data: protocol' to affect pages loaded by other extensions. This may allow a context-dependent attacker to potentially disclose sensitive information or gain elevated privileges related to other extensions.
 - A flaw exists in 'mobile/android/chrome/content/browser.js' that is triggered when handling a series of JavaScript events in fullscreen mode. This may allow a context-dependent attacker to spoof the location bar.
 - A flaw exists that is triggered as certain 'about: pages' used by web content may load other privileged 'about: pages' within an iframe. This may potentially allow a context-dependent attacker to gain elevated privileges.
 - A flaw exists that is triggered as weak proxy objects may have weak references on multiple threads, instead of only one. This may potentially allow a context-dependent attacker to corrupt memory and execute arbitrary code.
 - A flaw exists in 'toolkit/mozapps/extensions/AddonManager.jsm' that is triggered as mozAddonManager allows for extension installation from the CDN for addons.mozilla.org. This may potentially allow a malicious extension to install additional extensions.
 - A flaw exists that is triggered when the location bar of a new page has been scrolled out of view. This may potentially allow a context-dependent attacker to spoof the location bar.
 - A flaw exists in the 'HTMLTrackElement::SetReadyState()' function in 'dom/html/HTMLTrackElement.cpp' that is triggered when handling TRACK tag error messages. This may allow a context-dependent attacker to enumerate the existence of local files.
 - A flaw exists in 'media/mtransport/nr_socket_prsock.cpp' that is triggered when a STUN server is used in conjunction with a saturation of webkitRTCPeerConnection objects, which may in turn produce a high volume of STUN packets. This may allow a remote attacker to generate significant UDP traffic, resulting in an amplification denial-of-service attack. When performed by multiple machines, a distributed denial-of-service (DDoS) attack can be carried out very effectively.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
96804	Slackware 14.1 / 14.2 / 最新版本：mozilla-thunderbird (SSA:2017-026-01)	Nessus	Slackware Local Security Checks	2017/1/27	2021/1/14	critical
96815	Debian DLA-800-1：firefox-esr 安全性更新	Nessus	Debian Local Security Checks	2017/1/27	2021/1/11	critical
96904	Mozilla Thunderbird < 45.7 Multiple Vulnerabilities (macOS)	Nessus	MacOS X Local Security Checks	2017/1/31	2019/11/13	critical
97256	GLSA-201702-13：Mozilla Thunderbird：多個弱點	Nessus	Gentoo Local Security Checks	2017/2/21	2021/1/11	critical
97265	GLSA-201702-22：Mozilla Firefox：多個弱點	Nessus	Gentoo Local Security Checks	2017/2/21	2021/1/11	critical
99545	Debian DSA-3832-1：icedove - 安全性更新	Nessus	Debian Local Security Checks	2017/4/21	2021/1/11	critical
9928	Mozilla Firefox ESR < 45.7 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2017/1/31	2019/11/6	high
9927	Mozilla Firefox < 51 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2017/1/31	2019/3/6	high

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