The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2016-545:01 advisory.

    This library allows to manipulate XML files. It includes support     to read, modify and write XML and HTML files. There is DTDs support     this includes parsing and validation even with complex DtDs, either     at parse time or later once the document has been modified. The output     can be a simple SAX stream or and in-memory DOM like representations.
    In this case one can use the built-in XPath and XPointer implementation     to select sub nodes or ranges. A flexible Input/Output mechanism is     available, with existing HTTP and FTP modules and combined to an     URI library.
    Security issues fixed with this release:
    CVE-2016-1762     libxml2 in Apple iOS before 9.3, OS X before 10.11.4, Safari before     9.1, tvOS before 9.2, and watchOS before 2.2 allows remote attackers     to execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document.
    CVE-2016-1833     libxml2, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS     before 9.2.1, and watchOS before 2.2.1, allows remote attackers to     execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document, a different vulnerability than     CVE-2016-1834, CVE-2016-1836, CVE-2016-1837, CVE-2016-1838,     CVE-2016-1839, and CVE-2016-1840.
    CVE-2016-1834     libxml2, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS     before 9.2.1, and watchOS before 2.2.1, allows remote attackers to     execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document, a different vulnerability than     CVE-2016-1833, CVE-2016-1836, CVE-2016-1837, CVE-2016-1838,     CVE-2016-1839, and CVE-2016-1840.
    CVE-2016-1835     libxml2, as used in Apple iOS before 9.3.2 and OS X before 10.11.5,     allows remote attackers to execute arbitrary code or cause a denial of     service (memory corruption) via a crafted XML document.
    CVE-2016-1836     libxml2, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS     before 9.2.1, and watchOS before 2.2.1, allows remote attackers to     execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document, a different vulnerability than     CVE-2016-1833, CVE-2016-1834, CVE-2016-1837, CVE-2016-1838,     CVE-2016-1839, and CVE-2016-1840.
    CVE-2016-1837     libxml2, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS     before 9.2.1, and watchOS before 2.2.1, allows remote attackers to     execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document, a different vulnerability than     CVE-2016-1833, CVE-2016-1834, CVE-2016-1836, CVE-2016-1838,     CVE-2016-1839, and CVE-2016-1840.
    CVE-2016-1838     libxml2, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS     before 9.2.1, and watchOS before 2.2.1, allows remote attackers to     execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document, a different vulnerability than     CVE-2016-1833, CVE-2016-1834, CVE-2016-1836, CVE-2016-1837,     CVE-2016-1839, and CVE-2016-1840.
    CVE-2016-1839     libxml2, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS     before 9.2.1, and watchOS before 2.2.1, allows remote attackers to     execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document, a different vulnerability than     CVE-2016-1833, CVE-2016-1834, CVE-2016-1836, CVE-2016-1837,     CVE-2016-1838, and CVE-2016-1840.
    CVE-2016-1840     libxml2, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS     before 9.2.1, and watchOS before 2.2.1, allows remote attackers to     execute arbitrary code or cause a denial of service (memory     corruption) via a crafted XML document, a different vulnerability than     CVE-2016-1833, CVE-2016-1834, CVE-2016-1836, CVE-2016-1837,     CVE-2016-1838, and CVE-2016-1839.
    CVE-2016-3627     The xmlStringGetNodeList function in tree.c in libxml2 2.9.3 and     earlier, when used in recovery mode, allows context-dependent     attackers to cause a denial of service (infinite recursion, stack     consumption, and application crash) via a crafted XML document.
    CVE-2016-3705     The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions     in parser.c in libxml2 2.9.3 do not properly keep track of the     recursion depth, which allows context-dependent attackers to cause a     denial of service (stack consumption and application crash) via a     crafted XML document containing a large number of nested entity     references.
    CVE-2016-4447     The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4     allows context-dependent attackers to cause a denial of service     (heap-based buffer underread and application crash) via a crafted     file, involving xmlParseName.
    CVE-2016-4448     Format string vulnerability in libxml2 before 2.9.4 allows attackers     to have unspecified impact via format string specifiers in unknown     vectors.
    CVE-2016-4449     XML external entity (XXE) vulnerability in the     xmlStringLenDecodeEntities function in parser.c in libxml2 before     2.9.4, when not in validating mode, allows context-dependent attackers     to read arbitrary files or cause a denial of service (resource     consumption) via unspecified vectors.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause a denial-of-service against the application, or potentially the execution of arbitrary code with the privileges of the user running the application.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2994-1 advisory.

    It was discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated     system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to     crash, resulting in a denial of service. (CVE-2015-8806, CVE-2016-2073, CVE-2016-3627, CVE-2016-3705,     CVE-2016-4447)

    It was discovered that libxml2 incorrectly handled certain malformed documents. If a user or automated     system were tricked into opening a specially crafted document, an attacker could cause libxml2 to crash,     resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1762, CVE-2016-1834)

    Mateusz Jurczyk discovered that libxml2 incorrectly handled certain malformed documents. If a user or     automated system were tricked into opening a specially crafted document, an attacker could cause libxml2     to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1833,     CVE-2016-1838, CVE-2016-1839)

    Wei Lei and Liu Yang discovered that libxml2 incorrectly handled certain malformed documents. If a user or     automated system were tricked into opening a specially crafted document, an attacker could cause libxml2     to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1835,     CVE-2016-1837)

    Wei Lei and Liu Yang discovered that libxml2 incorrectly handled certain malformed documents. If a user or     automated system were tricked into opening a specially crafted document, an attacker could cause libxml2     to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to     Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS. (CVE-2016-1836)

    Kostya Serebryany discovered that libxml2 incorrectly handled certain malformed documents. If a user or     automated system were tricked into opening a specially crafted document, an attacker could cause libxml2     to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-1840)

    It was discovered that libxml2 would load certain XML external entities. If a user or automated system     were tricked into opening a specially crafted document, an attacker could possibly obtain access to     arbitrary files or cause resource consumption. (CVE-2016-4449)

    Gustavo Grieco discovered that libxml2 incorrectly handled certain malformed documents. If a user or     automated system were tricked into opening a specially crafted document, an attacker could possibly cause     libxml2 to crash, resulting in a denial of service. (CVE-2016-4483)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is running a version of Mac OS X that is 10.11.x prior to 10.11.6. It is, therefore, affected by multiple vulnerabilities in the following components :

  - apache_mod_php
  - Audio
  - bsdiff
  - CFNetwork
  - CoreGraphics
  - FaceTime
  - Graphics Drivers
  - ImageIO
  - Intel Graphics Driver
  - IOHIDFamily
  - IOKit
  - IOSurface
  - Kernel
  - libc++abi
  - libexpat
  - LibreSSL
  - libxml2
  - libxslt
  - Login Window
  - OpenSSL
  - QuickTime
  - Safari Login AutoFill
  - Sandbox Profiles

Note that successful exploitation of the most serious issues can result in arbitrary code execution.

According to its banner, the version of the remote Apple TV device is prior to 9.2.2. It is, therefore, affected by multiple vulnerabilities in the following components :

  - CoreGraphics
  - ImageIO
  - IOAcceleratorFamily
  - IOHIDFamily
  - Kernel
  - libxml2
  - libxslt
  - Sandbox Profiles
  - WebKit
  - WebKit Page Loading

Note that only 4th generation models are affected by the vulnerabilities.

According to its self-reported version, the Nessus Network Monitor running on the remote host is prior to 6.2.2. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2023-23 advisory. Several of the third-party components were found to contain vulnerabilities, and updated versions have been made available by the providers. Out of caution and in line with best practice, Tenable has opted to upgrade these components to address the potential impact of the issues. Nessus Network Monitor 6.2.2 updates the following components:

  - c-ares from version 1.10.0 to version 1.19.1.
  - curl from version 7.79.1 to version 8.1.2.
  - libbzip2 from version 1.0.6 to version 1.0.8.
  - libpcre from version 8.42 to version 8.44.
  - libxml2 from version 2.7.7 to version 2.11.1.
  - libxslt from version 1.1.26 to version 1.1.37.
  - libxmlsec from version 1.2.18 to version 1.2.37.
  - sqlite from version 3.27.2 to version 3.40.1.
  - jQuery Cookie from version 1.3.1 to version 1.4.1.
  - jQuery UI from version 1.13.0 to version 1.13.2.
  - OpenSSL from version 3.0.8 to version 3.0.9.

The version of iOS running on the mobile device is prior to 9.3.3. It is, therefore, affected by multiple vulnerabilities, the most serious of which can result in remote code execution, in the following components :

  - Calendar
  - CoreGraphics
  - FaceTime
  - ImageIO
  - IOAcceleratorFamily
  - IOHIDFamily
  - Kernel
  - libxml2
  - libxslt
  - Safari
  - Sandbox Profiles
  - Siri Contacts
  - Web Media
  - WebKit
  - WebKit JavaScript Bindings
  - WebKit Page Loading

ID	名稱	產品	系列	已發布	已更新	嚴重性
289699	MiracleLinux 7 : libxml2-2.9.1-6.0.1.el7.AXS7.3 (AXSA:2016-545:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	critical
91447	Debian DSA-3593-1 : libxml2 - security update	Nessus	Debian Local Security Checks	2016/6/3	2021/1/11	high
91499	Ubuntu 14.04 LTS / 16.04 LTS : libxml2 vulnerabilities (USN-2994-1)	Nessus	Ubuntu Local Security Checks	2016/6/7	2024/8/27	high
92496	Mac OS X 10.11.x < 10.11.6 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	2016/7/21	2024/5/28	critical
92494	Apple TV < 9.2.2 Multiple Vulnerabilities	Nessus	Misc.	2016/7/21	2026/1/30	critical
177842	Nessus Network Monitor < 6.2.2 Multiple Vulnerabilities (TNS-2023-23)	Nessus	Misc.	2023/6/30	2023/7/6	critical
92359	Apple iOS < 9.3.3 Multiple Vulnerabilities	Nessus	Mobile Devices	2016/7/19	2026/11/9	critical

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