libxml2 库是提供各种 XML 标准实现的开发工具箱。其中一项标准是 XML 路径语言 (XPath)，这是用于处理 XML 文档的某些部分的语言。

在 libxml2 解析某些 XML 文件的方式中发现导致基于堆的缓冲区溢出的差一错误。远程攻击者可提供特别构建的 XML 文件，在链接到 libxml2 的应用程序中打开该文件时，将导致应用程序崩溃，或者可能以运行应用程序的用户权限来执行任意代码。(CVE-2011-0216)

在 libxml2 解析某些 XPath 表达式的方式中发现一个导致基于堆的缓冲区溢出的整数溢出缺陷。如果攻击者能够向使用 libxml2 的应用程序提供特别构建的 XML 文件，以及适用于该应用程序的 XPath 表达式以根据构建的文件运行，则可导致应用程序崩溃或可能执行任意代码。
(CVE-2011-1944)

在 libxml2 解析某些 XPath 表达式的方式中发现多种缺陷。如果攻击者能够向使用 libxml2 的应用程序提供特别构建的 XML 文件，以及适用于该应用程序的 XPath 表达式以根据构建的文件运行，则可导致应用程序崩溃。（CVE-2010-4008、CVE-2010-4494、CVE-2011-2821、CVE-2011-2834）

注意：Scientific Linux 未以允许利用 CVE-2011-1944、CVE-2010-4008、CVE-2010-4494、CVE-2011-2821 和 CVE-2011-2834 缺陷的方式随附使用 libxml2 的任何应用程序；但是，第三方应用程序可能允许传递 XPath 表达式，可触发这些缺陷。

此更新还修复以下缺陷：

- 已应用许多修补程序来强化 libxml2 中的 XPath 处理代码，例如修复内存泄漏、舍入错误、XPath 编号评估以及编码转换中的潜在错误。

建议所有 libxml2 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。必须重新启动（注销，然后再登录）桌面才能使此更新生效。

大量安全补丁

请注意，Tenable Network Security 已直接从 Fedora 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整理和排版。

大量安全缺陷补丁
大量安全修补程序

请注意，Tenable Network Security 已直接从 Fedora 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整理和排版。

根据 web 服务器的标题，远程主机上托管的 HP System Management Homepage (SMH) 版本低于 7.1.1，因此报告指出可能受到以下漏洞的影响：

- libxml2 库的捆绑版本包含多种漏洞。（CVE-2011-1944、CVE-2011-2821、CVE-2011-2834）

- PHP 的捆绑版本包含多种漏洞。（CVE-2011-3379、CVE-2011-4153、CVE-2011-4885、CVE-2012-1823、CVE-2012-0057、CVE-2012-0830）

- Apache HTTP Server 的捆绑版本包含多种漏洞。（CVE-2011-3607、CVE-2011-4317、CVE-2011-4415、CVE-2012-0021、CVE-2012-0031、CVE-2012-0053）

- 嵌入的 RoundCube Webmail 版本的“include/iniset.php”脚本中存在一个问题，可导致拒绝服务。(CVE-2011-4078)

- OpenSSL 的捆绑版本包含多种漏洞。（CVE-2011-4108、CVE-2011-4576、CVE-2011-4577、CVE-2011-4619、CVE-2012-0027、CVE-2012-1165）

- curl 和 libcurl 的捆绑版本在从 URL 中抽取路径名称时无法正确考虑特殊字符。(CVE-2012-0036) 
 - 不明表单字段没有 off autocomplete 属性，导致远程攻击者更容易通过利用无人看管的工作站获得访问权限。(CVE-2012-2012)

- 存在一个不明漏洞，可允许远程攻击者造成拒绝服务，或者可能获得敏感信息或修改数据。
 (CVE-2012-2013)

- 存在一个与不当输入验证相关的不明漏洞。(CVE-2012-2014)

- 存在不明漏洞，导致未经认证的远程用户获取权限和敏感信息。(CVE-2012-2015)

- 存在不明漏洞，导致本地用户通过未知矢量获取敏感信息。
 (CVE-2012-2016)

The remote host is running a version of Mac OS X 10.7 that is older than version 10.7.4.  The newer version contains numerous security-related fixes for the following components :

  - Login Windows
  - Bluetooth
  - curl
  - HFS
  - Kernel
  - libarchive
  - libsecurity
  - libxml
  - LoginUIFramework
  - PHP
  - Quartz Composer
  - QuickTime
  - Ruby
  - Security Framework
  - Time Machine
  - X11

Versions of Google Chrome earlier than 14.0.835.163 are affected by multiple vulnerabilities : 

  - A race condition exists related to the certificate cache. (Issue 49377)

  - The Windows Media Player plugin allows click-free access to the system Flash. (Issue 51464)
  - PIC / pie compiler lags are not used. (Linux only)(Issue 57908)
 - MIME types are not treated authoritatively at plugin load time. (Issue 75070)
  - An unspecified error allows V8 script object wrappers to crash. (Issue 76771)
  - The included PDF functionality contains a garbage collection error. (Issue 78639)
  - The Mac installer insecurely handles lock files. (Mac only)(Issue 80680)  - Out-of-bounds read issues exist related to media buffers, mp3 files, box handling, Khmer characters, video handling, Tibetan characters, and triangle arrays. (Issues 82438, 85041, 89991, 90134, 90173, 95563, 95625)
  - An unspecified error allows data displayed in the URL to be spoofed. (Issue 83031)
  - Use-after-free error exist related to unload event handling, the document loader, plugin handling, ruby table style handling, and the focus controller. (Issues 89219, 89330, 91197, 92651, 94800, 93420, 93587)
  - The URL bar can be spoofed in an unspecified manner related to the forward button. (Issue 89564)
  - A NULL pointer error exists related to WebSockets. Issue 89795)
  An off-by-one error exists related to the V8 JavaScript engine. (Issue 91120)
  - A stale node error exists related to CSS stylesheet handling. (Issue 92959)
  - A cross-origin bypass error exists related to the V8 JavaScript engine. (Issue 93416)
  - A double-free error exists related to XPath handling in libxml. (Issue 93472)
  - Incorrect permissions are assigned to non-gallery pages. (Issue 93497)
  - An improper string read occurs in the included PDF functionality. (Issue 93596)
  - An unspecified error allows unintended access to objects build in to the V8 JavaScript engine. (Issue 93906)
  - Self-signed certificates are not pinned properly. (Issue 95917)
  - A variable-type confusion issue exists in the V8 JavaScript engine related to object sealing. (Issue 95920)

According to its banner, the remote Apple iOS device is missing a security update.  Versions of Apple iOS prior to 6.0 are exposed to the following vulnerabilities :

  - Numerous memory errors exist related to handling 'TIFF', 'PNG' and 'JPEG' images and 'ImageIO' that can allow arbitrary code execution. (CVE-2011-1167, CVE-2011-3026, CVE-2011-3048, CVE-2011-3328, CVE-2012-1173, CVE-2012-3726)

  - Several issues exist related to 'CoreGraphics' and 'FreeType' (CVE-2012-1126, CVE-2012-1127, CVE-2012-1128, CVE-2012-1129, CVE-2012-1130, CVE-2012-1131, CVE-2012-1132, CVE-2012-1133, CVE-2012-1134, CVE-2012-1135, CVE-2012-1136, CVE-2012-1137, CVE-2012-1138, CVE-2012-1139, CVE-2012-1140, CVE-2012-1141, CVE-2012-1142, CVE-2012-1143, CVE-2012-1144)

  - Numerous issues exist related to libxml and can lead to application crashes or arbitrary code execution. (CVE-2011-1944, CVE-2011-2821, CVE-2011-2834, CVE-2011-3919)

  - A stack-based buffer overflow exists related to 'locale ID' and 'International Components for Unicode' (ICU). (CVE-2011-4599)

  - An unitialized memory access issue exists related to 'Sorenson' encoded movie files and 'CoreMedia'. (CVE-2012-3722)

  - An URL handling issue exists related to 'CFNetwork' that can disclose sensitive information. (CVE-2012-3724)

  - The 'DNAv4' protocol discloses sensitive information when connecting to unencrypted Wi-Fi networks. (CVE-2012-3725)

  - A buffer overflow error exists related to 'IPSec' and 'racoon' configuration files. (CVE-2012-3727)

  - An invalid pointer dereference error exists related to the kernel and packet filter ioctls. (CVE-2012-3728)

  - An uninitialized memory access error exists related to the kernel and the Berkeley Packet Filter interpreter. (CVE-2012-3729)

  - Several issues exist related to 'Mail' and the handling of attachments and 'S/MIME' signed messages. (CVE-2012-3730, CVE-2012-3731, CVE-2012-3732)

  - Information disclosure issues exist related to 'Messages', 'Office Viewer', system logs, and 'UIKit'. (CVE-2012-3733, CVE-2012-3734, CVE-2012-3743, CVE-2012-3746)

  - Memory corruption errors exist related to 'OpenGL'. (CVE-2011-3457)

  - Numerous errors exist related to 'Passcode Lock'. (CVE-2012-3735, CVE-2012-3736, CVE-2012-3737, CVE-2012-3738, CVE-2012-3739, CVE-2012-3740)

  - An error exists in 'Restrictions' that can allow unauthorized purchases. (CVE-2012-3741)

  - Errors exist in 'Safari' that are related to misleading URL characters and password auto complete. (CVE-2012-3742, CVE-2012-0680)

  - A buffer overflow error exists related to 'Telephony' and SMS handling. (CVE-2012-3745)

  - Many errors exist related to the bundled 'WebKit' components. (CVE-2011-2845, CVE-2011-3016, CVE-2011-3021, CVE-2011-3027, CVE-2011-3032, CVE-2011-3034, CVE-2011-3035, CVE-2011-3036, CVE-2011-3037, CVE-2011-3038, CVE-2011-3039, CVE-2011-3040, CVE-2011-3041, CVE-2011-3042, CVE-2011-3043, CVE-2011-3044, CVE-2011-3050, CVE-2011-3053, CVE-2011-3059, CVE-2011-3060, CVE-2011-3064, CVE-2011-3067, CVE-2011-3068, CVE-2011-3069, CVE-2011-3071, CVE-2011-3073, CVE-2011-3074, CVE-2011-3075, CVE-2011-3076, CVE-2011-3078, CVE-2011-3081, CVE-2011-3086, CVE-2011-3089, CVE-2011-3090, CVE-2011-3105, CVE-2011-3913, CVE-2011-3924, CVE-2011-3926, CVE-2011-3958, CVE-2011-3966, CVE-2011-3968, CVE-2011-3969, CVE-2011-3971, CVE-2012-0682, CVE-2012-0683, CVE-2012-1520, CVE-2012-1521, CVE-2012-2815, CVE-2012-2818, CVE-2012-3589, CVE-2012-3590, CVE-2012-3591, CVE-2012-3592, CVE-2012-3593, CVE-2012-3594, CVE-2012-3595, CVE-2012-3596, CVE-2012-3597, CVE-2012-3598, CVE-2012-3599, CVE-2012-3600, CVE-2012-3601, CVE-2012-3602, CVE-2012-3603, CVE-2012-3604, CVE-2012-3605, CVE-2012-3608, CVE-2012-3609, CVE-2012-3610, CVE-2012-3611, CVE-2012-3612, CVE-2012-3613, CVE-2012-3614, CVE-2012-3615, CVE-2012-3617, CVE-2012-3618, CVE-2012-3620, CVE-2012-3624, CVE-2012-3625, CVE-2012-3626, CVE-2012-3627, CVE-2012-3628, CVE-2012-3629, CVE-2012-3630, CVE-2012-3631, CVE-2012-3633, CVE-2012-3634, CVE-2012-3635, CVE-2012-3636, CVE-2012-3637, CVE-2012-3638, CVE-2012-3639, CVE-2012-3640, CVE-2012-3641, CVE-2012-3642, CVE-2012-3644, CVE-2012-3645, CVE-2012-3646, CVE-2012-3647, CVE-2012-3648, CVE-2012-3650, CVE-2012-3651, CVE-2012-3652, CVE-2012-3653, CVE-2012-3655, CVE-2012-3656, CVE-2012-3658, CVE-2012-3659, CVE-2012-3660, CVE-2012-3661, CVE-2012-3663, CVE-2012-3664, CVE-2012-3665, CVE-2012-3666, CVE-2012-3667, CVE-2012-3668, CVE-2012-3669, CVE-2012-3670, CVE-2012-3671, CVE-2012-3672, CVE-2012-3673, CVE-2012-3674, CVE-2012-3676, CVE-2012-3677, CVE-2012-3678, CVE-2012-3679, CVE-2012-3680, CVE-2012-3681, CVE-2012-3682, CVE-2012-3683, CVE-2012-3684, CVE-2012-3686, CVE-2012-3691, CVE-2012-3693, CVE-2012-3695, CVE-2012-3696, CVE-2012-3703, CVE-2012-3704, CVE-2012-3706, CVE-2012-3708, CVE-2012-3710, CVE-2012-3747)

ID	Name	Product	Family	Published	Updated	Severity
61192	Scientific Linux 安全更新：SL6.x i386/x86_64 中的 libxml2	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	critical
62323	Fedora 17：libxml2-2.7.8-9.fc17 (2012-13820)	Nessus	Fedora Local Security Checks	9/27/2012	1/11/2021	high
62324	Fedora 16：libxml2-2.7.8-8.fc16 (2012-13824)	Nessus	Fedora Local Security Checks	9/27/2012	1/11/2021	high
59851	HP System Management Homepage < 7.1.1 多种漏洞	Nessus	Web Servers	7/5/2012	4/11/2022	critical
6482	Mac OS X 10.7 < 10.7.4 Multiple Vulnerabilities	Nessus Network Monitor	Generic	5/14/2012	3/6/2019	critical
6024	Google Chrome < 14.0.835.163 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	9/21/2011	3/6/2019	high
6589	Apple iOS < 6.0 Multiple Vulnerabilities	Nessus Network Monitor	Mobile Devices	9/24/2012	3/6/2019	high

Detections

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