Christian Holler、David Major、Jesse Ruderman、Tyson Smith、Boris Zbarsky、Randell Jesup、Olli Pettay、Karl Tomlinson、Jeff Walden 和 Gary Kwong 发现 Thunderbird 中的多种内存安全问题。如果用户受到诱骗打开特别构建的消息，则攻击者可能利用这些漏洞通过使应用程序崩溃来造成拒绝服务，或者以调用 Thunderbird 的用户的权限来执行任意代码。(CVE-2015-4513)

Tyson Smith 和 David Keeler 发现，在 NSS 中存在故障后使用以及缓冲区溢出缺陷。攻击者可能利用这些漏洞通过造成应用程序崩溃造成拒绝服务，或以调用 Thunderbird 的用户的权限执行任意代码。（CVE-2015-7181、CVE-2015-7182）

Ryan Sleevi 发现，NSPR 中存在整数溢出。攻击者可能利用此漏洞通过造成应用程序崩溃造成拒绝服务，或以调用 Thunderbird 的用户权限执行任意代码。(CVE-2015-7183)

Michal Bentkowski 发现，添加空格到作为 IP 地址的主机名可绕过同源保护。如果用户受到诱骗在类似浏览器的上下文中打开特别构建的网站，攻击者可能利用此问题进行跨站脚本 (XSS) 攻击。(CVE-2015-7188)

Looben Yang 发现，在某些情况下，使用 Canvas 元素的脚本交互期间会发生缓冲区溢出。如果用户受到诱骗在类似浏览器的上下文中打开特别构建的网站，攻击者可能利用这些漏洞，通过造成应用程序崩溃造成拒绝服务，或者以调用 Thunderbird 用户的权限执行任意代码。(CVE-2015-7189)

Shinto K Anto 发现，在某些情况下接收非标准 Content-Type 标头时，会绕过 CORS 预检。如果用户受到诱骗在类似浏览器的上下文中打开特别构建的网站，攻击者可能利用此问题绕过同源限制。(CVE-2015-7193)

Gustavo Grieco 发现，在某些情况下 libjar 中存在缓冲区溢出。如果用户受到诱骗在类似浏览器的上下文中打开特别构建的网站，攻击者可能利用这些漏洞，通过造成应用程序崩溃造成拒绝服务，或者以调用 Thunderbird 用户的权限执行任意代码。(CVE-2015-7194)

Ehsan Akhgari 发现了某种机制，该机制使 Web 工作线程可绕过对 Web 套接字的安全要求。如果用户受到诱骗在类似浏览器的上下文中打开特别构建的网站，攻击者可利用此问题绕过混合内容 Web 套接字策略。
(CVE-2015-7197)

Ronald Crane 发现代码检查过程中存在多个漏洞。如果用户受到诱骗在类似浏览器的上下文中打开特别构建的网站，攻击者可能利用这些漏洞，通过造成应用程序崩溃造成拒绝服务，或者以调用 Thunderbird 用户的权限执行任意代码。（CVE-2015-7198、CVE-2015-7199、CVE-2015-7200）

请注意，Tenable Network Security 已直接从 Ubuntu 安全公告中提取上述描述块。Tenable 已尝试在不引入其他问题的情况下，尽可能进行了自动清理和排版。

远程 Redhat Enterprise Linux 6 / 7 主机上安装的程序包受到 RHSA-2015:1981 公告中提及的多个漏洞的影响。

    网络安全服务 (NSS) 是一组库，专用于支持启用了安全性的客户端和服务器应用程序的跨平台开发。Netscape Portable Runtime (NSPR) 为非 GUI 操作系统设施提供平台独立性。

    在 NSS 解析特定 ASN.1 结构的方式中发现故障后使用缺陷和基于堆的缓冲区溢出缺陷。攻击者可以利用这些缺陷，以运行针对 NSS 库编译的应用程序的用户所具有的权限，导致 NSS 崩溃或执行任意代码。
    （CVE-2015-7181、CVE-2015-7182）

    在 NSPR 中发现基于堆的缓冲区溢出。攻击者可以利用此缺陷，以运行针对 NSPR 库编译的应用程序的用户所具有的权限，导致 NSPR 崩溃或执行任意代码。
    (CVE-2015-7183)

    注意：使用 NSPR 的 PL_ARENA_ALLOCATE、PR_ARENA_ALLOCATE、PL_ARENA_GROW 或 PR_ARENA_GROW 宏的应用程序需要针对修复的 nspr 程序包重新构建，才能完全解决 CVE-2015-7183 问题。此勘误表已包含针对修复的 nspr 版本进行重建后的 nss 与 nss-utils 程序包。

    Red Hat 在此感谢 Mozilla 项目报告这些问题。
    上游感谢原始报告者 Tyson Smith、David Keeler 和 Ryan Sleevi。

    建议所有 nss、nss-util 和 nspr 用户升级这些更新后的程序包，其中包含用于修正这些问题的向后移植的修补程序。

Tenable 已直接从 Red Hat Enterprise Linux 安全公告中提取上述描述块。

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

The version of Mozilla Firefox is prior to 42.0 and is affected by multiple vulnerabilities : 

 - Multiple flaws in the browser engine allow remote attackers to corrupt memory and potentially execute arbitrary code. (CVE-2015-4513, CVE-2015-4514)
 - A flaw exists that is triggered when handling type 3 messages as part of the NTLM authentication exchange. This may allow an attacker to disclose system hostname and windows domain information. (CVE-2015-4515)
 - A flaw exists related to the whitelist used by Reader View to disable script for rendered pages being too permissive. This may allow an attacker to bypass CSP protections and in turn potentially conduct XSS attacks. (CVE-2015-4518)
 - An unspecified use-after-poison flaw exists in Mozilla Network Security Services (NSS) in the 'sec_asn1d_parse_leaf()' function that may allow an attacker to execute arbitrary code. (CVE-2015-7181)
 - An overflow condition exists in Mozilla Network Security Services (NSS) in the ASN.1 decoder. The issue is triggered as user-supplied input is not properly validated when handling an OCTET STRING. This may allow an attacker to cause a heap-based buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code. (CVE-2015-7182)
 - An integer overflow condition exists in Netscape Portable Runtime (NSPR) in the PL_ARENA_ALLOCATE macro that is triggered as user-supplied input is not properly validated during memory allocation. This may allow an attacker to corrupt memory, crashing an application linked against the library or potentially allowing the execution of arbitrary code. (CVE-2015-7183)
 - A flaw exists in the 'fetch()' API that is due it failing to properly implement the Cross-Origin Resource Sharing (CORS) feature. This may allow an attacker to potentially gain unauthorized access to cross-origin information. (CVE-2015-7184)- A flaw exists that is due to the program failing to enforce settings when disabling scripts in the Add-on SDK panel. By defining a panel with "script: false", all script execution is designed to be disabled. With a crafted web site, an attacker may be able to bypass this restriction, facilitating scripting attacks. (CVE-2015-7187)
 - A flaw exists in 'netwerk/base/nsStandardURL.cpp' that is triggered during the handling of trailing whitespaces in the IP address hostname. This may allow an attacker to bypass the same-origin policy. (CVE-2015-7188)
 - A race condition exists in the 'JPEGEncoder()' function. The issue is triggered as user-supplied input is not properly validated when handling canvas elements. This may allow an attacker to cause a heap-based buffer overflow and potentially execute arbitrary code. (CVE-2015-7189)
 - A flaw exists (Firefox for OS X only) in the 'ConvertToNSArray()' function in 'accessible/mac/mozAccessible.mm.' The issue is triggered when an accessibility tool requests the index of a table row via the 'NSAccessibilityIndexAttribute' value. This may allow an attacker to potentially execute arbitrary code. (CVE-2015-7192)
 - A flaw exists that is triggered during the handling of content-type headers for multiple media types returned from a server. This may allow an attacker to bypass cross-origin resource sharing (CORS) and perform simple request instead of a 'preflight' request. (CVE-2015-7193)
 - A flaw exists in the 'nsZipArchive::GetData()' function in 'modules/libjar/nsZipArchive.cpp' that is triggered as user-supplied input is not properly validated when handling ZIP archives. This may allow an attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-7194)
 - A flaw exists that is triggered during the parsing of escaped characters in the hostname of location headers. This may allow an attacker to gain access to arbitrary site-specific token information. (CVE-2015-7195)
 - A flaw exists in the '_releaseobject()' function in 'dom/plugins/base/nsNPAPIPlugin.cpp' that is triggered when JavaScript wrappers become deallocated during use. This may allow an attacker to corrupt memory and potentially execute arbitrary code. (CVE-2015-7196)
 - A flaw exists in the 'WebSocketImpl::Init()' function in 'dom/base/WebSocket.cpp' that is triggered when determining the origin of the entry settings object for workers. This may allow an attacker to bypass the mixed content WebSocket policy. (CVE-2015-7197)
 - An overflow condition exists in the 'WebGLTexture::EnsureInitializedImageData()' function in 'dom/canvas/WebGLTexture.cpp.' The issue is triggered as user-supplied input is not properly validated. This may allow an attacker to cause a buffer overflow and potentially execute arbitrary code. (CVE-2015-7198)
 - A flaw exists in 'dom/svg/SVGPathSegListSMILType.cpp' related to missing return value checks for the 'AddWeightedPathSegLists()' function during SVG rendering. This may allow an attacker to corrupt memory and execute arbitrary code. (CVE-2015-7199)
 - A flaw exists that is due to missing status checks in CryptoKey related to OOM (Out-of-Memory) conditions. This may allow an attacker to make changes to crpytographic keys and potentially execute arbitrary code. (CVE-2015-7200)

Versions of Mozilla Thunderbird prior to 38.4 are outdated and thus unpatched for the following vulnerabilities :

 - Multiple memory corruption issues exist due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these issues, via a specially crafted web page, to cause a denial of service condition or the execution of arbitrary code. (CVE-2015-4513, CVE-2015-4514)
 - An unspecified use-after-poison flaw exists in the 'sec_asn1d_parse_leaf()' function in Mozilla Network Security Services (NSS) due to improper restriction of access to an unspecified data structure. A remote attacker can exploit this, via crafted OCTET STRING data, to cause a denial of service condition or the execution of arbitrary code. (CVE-2015-7181)
 - A heap buffer overflow condition exists in the ASN.1 decoder in Mozilla Network Security Services (NSS) due to improper validation of user-supplied input. A remote attacker can exploit this, via crafted OCTET STRING data, to cause a denial of service condition or the execution of arbitrary code. (CVE-2015-7182)
 - An integer overflow condition exists in the 'PL_ARENA_ALLOCATE' macro in the Netscape Portable Runtime (NSPR) due to improper validation of user-supplied input. A remote attacker can exploit this to corrupt memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2015-7183)
 - A same-origin bypass vulnerability exists due to improper handling of trailing whitespaces in the IP address hostname. A remote attacker can exploit this, by appending whitespace characters to an IP address string, to bypass the same-origin policy and conduct a cross-site scripting attack. (CVE-2015-7188)
 - A race condition exists in the 'JPEGEncoder()' function due to improper validation of user-supplied input when handling canvas elements. A remote attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2015-7189)
 - A cross-origin resource sharing (CORS) request bypass vulnerability exists due to improper implementation of the CORS cross-origin request algorithm for the POST method in situations involving an unspecified Content-Type header manipulation. A remote attacker can exploit this to perform a simple request instead of a 'preflight' request. (CVE-2015-7193)
 - A buffer underflow condition exists in libjar due to improper validation of user-supplied input when handling ZIP archives. A remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2015-7194)
 - A security bypass vulnerability exists due to improperly controlling the ability of a web worker to create a WebSocket object in the 'WebSocketImpl::Init()' method. A remote attacker can exploit this to bypass intended mixed-content restrictions. (CVE-2015-7197)
 - A buffer overflow condition exists in 'TextureStorage11' in ANGLE due to improper validation of user-supplied input. A remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2015-7198)
 - A flaw exists in the 'AddWeightedPathSegLists()' function due to missing return value checks during SVG rendering. A remote attacker can exploit this, via a crafted SVG document, to corrupt memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2015-7199)
 - A flaw exists in the CryptoKey interface implementation due to missing status checks. A remote attacker can exploit this to make changes to cryptographic keys and execute arbitrary code. (CVE-2015-7200)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
87168	Ubuntu 14.04 LTS：Thunderbird 漏洞 (USN-2819-1)	Nessus	Ubuntu Local Security Checks	2015/12/2	2024/8/28	critical
86745	RHEL 6 / 7：nss、nss-util 和 nspr (RHSA-2015:1981)	Nessus	Red Hat Local Security Checks	2015/11/5	2025/3/20	critical
9018	Mozilla Firefox < 42.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2015/12/7	2019/3/6	critical
9151	Mozilla Thunderbird < 38.4 Multiple Vulnerabilities	Nessus Network Monitor	SMTP Clients	2016/3/17	2019/3/6	high

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