This update for libxml2 fixes the following security issues :

  - CVE-2017-9050: A heap-based buffer over-read in     xmlDictAddString (bsc#1039069, bsc#1039661)

  - CVE-2017-9049: A heap-based buffer overflow in     xmlDictComputeFastKey (bsc#1039066)

  - CVE-2017-9048: A stack overflow vulnerability in     xmlSnprintfElementContent (bsc#1039063)

  - CVE-2017-9047: A stack overflow vulnerability in     xmlSnprintfElementContent (bsc#1039064)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

The remote host is affected by the vulnerability described in GLSA-201711-01 (libxml2: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in libxml2. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker, by enticing a user to process a specially crafted XML       document, could remotely execute arbitrary code, conduct XML External       Entity (XXE) attacks, or cause a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

According to the versions of the libxml2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a     heap-based buffer over-read in the xmlDictAddString     function in dict.c. This vulnerability causes programs     that use libxml2, such as PHP, to crash. This     vulnerability exists because of an incomplete fix for     CVE-2016-1839.(CVE-2017-9050)

  - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a     heap-based buffer over-read in the     xmlDictComputeFastKey function in dict.c. This     vulnerability causes programs that use libxml2, such as     PHP, to crash. This vulnerability exists because of an     incomplete fix for libxml2 Bug 759398.(CVE-2017-9049)

  - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a     stack-based buffer overflow. The function     xmlSnprintfElementContent in valid.c is supposed to     recursively dump the element content definition into a     char buffer 'buf' of size 'size'. At the end of the     routine, the function may strcat two more characters     without checking whether the current strlen(buf) + 2 <     size. This vulnerability causes programs that use     libxml2, such as PHP, to crash.(CVE-2017-9048)

  - The htmlParseTryOrFinish function in HTMLparser.c in     libxml2 2.9.4 allows attackers to cause a denial of     service (buffer over-read) or information     disclosure.(CVE-2017-8872)

  - The xz_decomp function in xzlib.c in libxml2 2.9.8, if
    --with-lzma is used, allows remote attackers to cause a     denial of service (infinite loop) via a crafted XML     file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated     by xmllint, a different vulnerability than     CVE-2015-8035.(CVE-2018-9251)

  - libxml2 2.9.8, if --with-lzma is used, allows remote     attackers to cause a denial of service (infinite loop)     via a crafted XML file that triggers     LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a     different vulnerability than CVE-2015-8035 and     CVE-2018-9251.(CVE-2018-14567)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is running Mac OS X 10.11.6 or Mac OS X 10.12.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities affecting the following components :

  - 802.1X
  - apache
  - AppleScript
  - ATS
  - Audio
  - CFString
  - CoreText
  - curl
  - Dictionary Widget
  - file
  - Fonts
  - fsck_msdos
  - HFS
  - Heimdal
  - HelpViewer
  - ImageIO
  - Kernel
  - libarchive
  - Open Scripting Architecture
  - PCRE
  - Postfix
  - Quick Look
  - QuickTime
  - Remote Management
  - Sandbox
  - StreamingZip
  - tcpdump
  - Wi-Fi

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
100884	openSUSE Security Update : libxml2 (openSUSE-2017-711)	Nessus	SuSE Local Security Checks	2017/6/20	2025/12/16	high
104492	GLSA-201711-01 : libxml2: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2017/11/10	2025/11/14	critical
134734	EulerOS Virtualization 3.0.2.2 : libxml2 (EulerOS-SA-2020-1268)	Nessus	Huawei Local Security Checks	2020/3/20	2024/3/21	critical
104379	macOS and Mac OS X Multiple Vulnerabilities (Security Update 2017-001 and 2017-004)	Nessus	MacOS X Local Security Checks	2017/11/3	2025/11/14	critical
177842	Nessus Network Monitor < 6.2.2 Multiple Vulnerabilities (TNS-2023-23)	Nessus	Misc.	2023/6/30	2023/7/6	critical

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