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。

更新后的 Thunderbird 程序包修复了多个安全问题，现在可用于 Red Hat Enterprise Linux 5、6 和 7。

Red Hat 产品安全团队将此更新评级为具有重要安全影响。可从“参考”部分中的 CVE 链接获取针对每个漏洞的通用漏洞评分系统 (CVSS) 基本分数，其给出了详细的严重性等级。

Mozilla Thunderbird 是独立的邮件和新闻组客户端。

在对畸形 Web 内容的处理中发现多个缺陷。包含恶意内容的网页可能导致 Thunderbird 崩溃，或者可能以运行 Thunderbird 的用户的权限执行任意代码。（CVE-2015-4513、CVE-2015-7189、CVE-2015-7197、CVE-2015-7198、CVE-2015-7199、CVE-2015-7200）

在 Thunderbird 处理某些跨源资源共享 (CORS) 请求的方式中发现一个同源策略绕过缺陷。包含恶意内容的网页可导致 Thunderbird 泄露敏感信息。(CVE-2015-7193)

注意：特别构建的 HTML 邮件消息无法利用所有上述问题，因为在默认情况下，邮件消息禁用 JavaScript。但是，在 Thunderbird 中可采用其他方式利用这些问题，例如通过查看 RSS 源的完整远程内容。

Red Hat 在此感谢 Mozilla 项目报告此问题。上游感谢这些问题的原始报告者 Christian Holler、David Major、Jesse Ruderman、Tyson Smith、Boris Zbarsky、Randell Jesup、Olli Pettay、Karl Tomlinson、Jeff Walden、Gary Kwong、Looben Yang、Shinto K Anto、Ronald Crane 和 Ehsan Akhgari。

有关这些缺陷的技术详细信息，请参阅针对 Thunderbird 38.4.0 的 Mozilla 安全公告。在本勘误表的“参考”部分可以找到 Mozilla 公告的链接。

所有 Thunderbird 用户都应升级这些更新后的程序包，其中包含已修正了这些问题的 Thunderbird 版本 38.4.0。
安装更新后，必须重新启动 Thunderbird 才能使更改生效。

远程 Mac OS X 主机上安装的 Thunderbird 版本低于 38.4。因此，它受到多种漏洞的影响：

- 由于未能正确验证用户提供的输入，因此存在多种内存损坏问题。未经验证的远程攻击者可利用这些问题，通过特别构建的网页，造成拒绝服务或执行任意代码。
 （CVE-2015-4513、CVE-2015-4514）

- Mozilla Network 安全服务 (NSS) 的 sec_asn1d_parse_leaf() 函数中，存在因未能正确限制对不明数据结构的访问而导致的不明故障后使用缺陷。远程攻击者可利用此问题，通过构建的 OCTET STRING 数据，造成拒绝服务或执行任意代码。(CVE-2015-7181)

- 由于未正确验证用户提供的输入，Mozilla Network 安全服务 (NSS) 中的 ASN.1 解码器中存在堆缓冲区溢出情况。远程攻击者可利用此问题，通过构建的 OCTET STRING 数据，造成拒绝服务或执行任意代码。(CVE-2015-7182)

- 由于未正确验证用户提供的输入，Netscape Portable Runtime (NSPR) 的 PL_ARENA_ALLOCATE 宏中存在整数溢出状况。远程攻击者可利用此情况破坏内存，从而导致拒绝服务或执行任意代码。(CVE-2015-7183)

- 由于未正确处理 IP 地址主机名末尾的空白字符，存在同源绕过漏洞。远程攻击者可利用此缺陷，向 IP 地址字符串中附加空白字符，进而绕过同源策略，发动跨站脚本攻击。(CVE-2015-7188)

- 由于在处理 Canvas 元素时，未能正确验证用户提供的输入，JPEGEncoder() 函数中存在争用条件。远程攻击者可利用此漏洞，造成基于堆的缓冲区溢出，从而导致拒绝服务或执行任意代码。(CVE-2015-7189)

- 由于在涉及不明 Content-Type 标头操纵的情况下，POST 方法的 CORS 跨源请求算法未能正确实现，因此存在跨源资源共享 (CORS) 请求绕过漏洞。远程攻击者可利用此漏洞，取代“preflight”，转而执行简单请求。(CVE-2015-7193)

- 由于处理 ZIP 存档时未正确验证用户提供的输入，libjar 中存在缓冲区下溢状况。远程攻击者可利用此问题，造成拒绝服务或执行任意代码。(CVE-2015-7194)

- 由于未能正确控制 Web 工作线程在 WebSocketImpl::Init() 方法中创建 WebSocket 对象的能力，因此存在安全绕过漏洞。
 远程攻击者可利用此漏洞绕过预期的混合内容限制。(CVE-2015-7197)

- 由于未能正确验证用户提供的输入，ANGLE 的 TextureStorage11 中存在缓冲区溢出状况。远程攻击者可利用此问题，造成拒绝服务或执行任意代码。(CVE-2015-7198)

- 由于在 SVG 渲染过程中未对返回值进行检查，AddWeightedPathSegLists() 函数中存在缺陷。
 远程攻击者可利用此问题，通过构建的 SVG 文档破坏内存，从而导致拒绝服务或执行任意代码。
 (CVE-2015-7199)

- 由于丢失状态检查，CryptoKey 接口实现中存在缺陷。远程攻击者可利用此缺陷，更改加密密钥并执行任意代码。(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)

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)

ID	名稱	產品	系列	已發布	已更新	嚴重性
87168	Ubuntu 14.04 LTS：Thunderbird 漏洞 (USN-2819-1)	Nessus	Ubuntu Local Security Checks	2015/12/2	2023/10/23	critical
87067	CentOS 5 / 6 / 7：thunderbird (CESA-2015:2519)	Nessus	CentOS Local Security Checks	2015/11/30	2021/1/4	high
87100	RHEL 5/6/7：thunderbird (RHSA-2015:2519)	Nessus	Red Hat Local Security Checks	2015/11/30	2024/4/27	high
87109	Mozilla Thunderbird < 38.4 多种漏洞 (Mac OS X)	Nessus	MacOS X Local Security Checks	2015/11/30	2019/11/20	high
9151	Mozilla Thunderbird < 38.4 Multiple Vulnerabilities	Nessus Network Monitor	SMTP Clients	2016/3/17	2019/3/6	high
9018	Mozilla Firefox < 42.0 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2015/12/7	2019/3/6	critical

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