Nick Wellnhofer discovered that certain function calls inside XPath predicates can lead to use-after-free and double-free errors when executed by libxml2's XPath engine via an XSLT transformation.

Google Chrome Releases reports :

37 security fixes in this release, including :

- [778505] Critical CVE-2017-15407: Out of bounds write in QUIC.
Reported by Ned Williamson on 2017-10-26

- [762374] High CVE-2017-15408: Heap buffer overflow in PDFium.
Reported by Ke Liu of Tencent's Xuanwu LAB on 2017-09-06

- [763972] High CVE-2017-15409: Out of bounds write in Skia. Reported by Anonymous on 2017-09-11

- [765921] High CVE-2017-15410: Use after free in PDFium. Reported by Luat Nguyen of KeenLab, Tencent on 2017-09-16

- [770148] High CVE-2017-15411: Use after free in PDFium. Reported by Luat Nguyen of KeenLab, Tencent on 2017-09-29

- [727039] High CVE-2017-15412: Use after free in libXML. Reported by Nick Wellnhofer on 2017-05-27

- [766666] High CVE-2017-15413: Type confusion in WebAssembly.
Reported by Gaurav Dewan of Adobe Systems India Pvt. Ltd. on 2017-09-19

- [765512] Medium CVE-2017-15415: Pointer information disclosure in IPC call. Reported by Viktor Brange of Microsoft Offensive Security Research Team on 2017-09-15

- [779314] Medium CVE-2017-15416: Out of bounds read in Blink.
Reported by Ned Williamson on 2017-10-28

- [699028] Medium CVE-2017-15417: Cross origin information disclosure in Skia. Reported by Max May on 2017-03-07

- [765858] Medium CVE-2017-15418: Use of uninitialized value in Skia.
Reported by Kushal Arvind Shah of Fortinet's FortiGuard Labs on 2017-09-15

- [780312] Medium CVE-2017-15419: Cross origin leak of redirect URL in Blink. Reported by Jun Kokatsu on 2017-10-31

- [777419] Medium CVE-2017-15420: URL spoofing in Omnibox. Reported by WenXu Wu of Tencent's Xuanwu Lab on 2017-10-23

- [774382] Medium CVE-2017-15422: Integer overflow in ICU. Reported by Yuan Deng of Ant-financial Light-Year Security Lab on 2017-10-13

- [780484] Medium CVE-2017-15430: Unsafe navigation in Chromecast Plugin. Reported by jinmo123 on 2017-01-11

- [778101] Low CVE-2017-15423: Issue with SPAKE implementation in BoringSSL. Reported by Greg Hudson on 2017-10-25

- [756226] Low CVE-2017-15424: URL Spoof in Omnibox. Reported by Khalil Zhani on 2017-08-16

- [756456] Low CVE-2017-15425: URL Spoof in Omnibox. Reported by xisigr of Tencent's Xuanwu Lab on 2017-08-17

- [757735] Low CVE-2017-15426: URL Spoof in Omnibox. Reported by WenXu Wu of Tencent's Xuanwu Lab on 2017-08-18

- [768910] Low CVE-2017-15427: Insufficient blocking of JavaScript in Omnibox. Reported by Junaid Farhan on 2017-09-26

- [792099] Various fixes from internal audits, fuzzing and other initiatives

The remote host is running a version of macOS / Mac OS X that is 10.13.x prior to 10.13.4. It is, therefore, affected by multiple vulnerabilities in the following components :

  - Admin Framework
  - APFS
  - ATS
  - CoreFoundation
  - CoreText
  - Disk Images
  - Disk Management
  - File System Events
  - iCloud Drive
  - Intel Graphics Driver
  - IOFireWireFamily
  - Kernel
  - kext tools
  - LaunchServices
  - Mail
  - Notes
  - NSURLSession
  - NVIDIA Graphics Drivers
  - PDFKit
  - PluginKit
  - Quick Look
  - Security
  - Storage
  - System Preferences
  - Terminal
  - WindowServer

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

The version of Google Chrome installed on the remote macOS host is prior to 63.0.3239.84. It is, therefore, affected by multiple vulnerabilities as referenced in the 2017_12_stable-channel-update-for-desktop advisory.

  - Type confusion in WebAssembly in V8 in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to     potentially exploit heap corruption via a crafted HTML page. (CVE-2017-15413)

  - Out-of-bounds Write in the QUIC networking stack in Google Chrome prior to 63.0.3239.84 allowed a remote     attacker to gain code execution via a malicious server. (CVE-2017-15407)

  - Heap buffer overflow in Omnibox in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to     potentially exploit heap corruption via a crafted PDF file that is mishandled by PDFium. (CVE-2017-15408)

  - Heap buffer overflow in Skia in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to     potentially exploit heap corruption via a crafted HTML page. (CVE-2017-15409)

  - Use after free in PDFium in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to potentially     exploit heap corruption via a crafted PDF file. (CVE-2017-15410, CVE-2017-15411)

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

Security fix for CVE-2017-15412 CVE-2017-15422 CVE-2017-15407 CVE-2017-15408 CVE-2017-15409 CVE-2017-15410 CVE-2017-15411 CVE-2017-15413 CVE-2017-15415 CVE-2017-15416 CVE-2017-15417 CVE-2017-15418 CVE-2017-15419 CVE-2017-15420 CVE-2017-15423 CVE-2017-15424 CVE-2017-15425 CVE-2017-15426 CVE-2017-15427 CVE-2017-15429

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

* libxml2: Use after free triggered by XPointer paths beginning with range-to * libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c * libxml2:
DoS caused by incorrect error detection during XZ decompression * libxml2: NULL pointer dereference in xmlXPathCompOpEval() function in xpath.c * libxml2: Unrestricted memory usage in xz_head() function in xzlib.c * libxml2: Infinite loop caused by incorrect error detection during LZMA decompression

The version of libxml2 installed on the remote host is prior to 2.9.1-6. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1466 advisory.

    A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2     through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case.
    Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable     to a denial of service attack due to a crash of the application. (CVE-2018-14404)

    Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products,     allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2017-15412)

    A denial of service flaw was found in libxml2. A remote attacker could provide a specially crafted XML or     HTML file that, when processed by an application using libxml2, would cause that application to crash.
    (CVE-2015-8035)

    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 thanCVE-2015-8035andCVE-2018-9251. (CVE-2018-14567)

    The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of     service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict     memory usage to what is required for a legitimate file. (CVE-2017-18258)

    Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82,     allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors     related to the XPointer range-to function. (CVE-2016-5131)

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

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

CVE-2017-15412 It was detected that some function calls in the XPath extensions functions could result in memory corruption due to 'use after free'.

For Debian 7 'Wheezy', these problems have been fixed in version 2.8.0+dfsg1-7+wheezy12.

We recommend that you upgrade your libxml2 packages.

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

This update for libxml2 fixes one issue. This security issue was fixed :

  - CVE-2017-15412: Prevent use after free when calling     XPath extension functions that allowed remote attackers     to cause DoS or potentially RCE (bsc#1077993)

  - CVE-2016-5131: Use-after-free vulnerability in libxml2     allowed remote attackers to cause a denial of service or     possibly have unspecified other impact via vectors     related to the XPointer range-to function. (bsc#1078813)

  - CVE-2017-5130: Fixed a potential remote buffer overflow     in function xmlMemoryStrdup() (bsc#1078806)

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

According to the version of the libxml2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - Use after free in libxml2 before 2.9.5, as used in     Google Chrome prior to 63.0.3239.84 and other products,     allowed a remote attacker to potentially exploit heap     corruption via a crafted HTML page.(CVE-2018-15412)

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 Fedora 28 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2018-aafdbb5554 advisory.

    Update to Chromium 65. For EPEL7, it has been a long time since a successful build has been possible, so     this will fix a LOT of CVEs.

    CVE-2017-15396     CVE-2017-15407 CVE-2017-15408 CVE-2017-15409 CVE-2017-15410 CVE-2017-15411 CVE-2017-15412 CVE-2017-15413     CVE-2017-15415 CVE-2017-15416 CVE-2017-15417 CVE-2017-15418 CVE-2017-15419 CVE-2017-15420 CVE-2017-15422     CVE-2018-6056 CVE-2018-6406     CVE-2018-6057 CVE-2018-6058 CVE-2018-6059 CVE-2018-6060 CVE-2018-6061 CVE-2018-6062 CVE-2018-6063     CVE-2018-6064 CVE-2018-6065 CVE-2018-6066 CVE-2018-6067 CVE-2018-6068 CVE-2018-6069 CVE-2018-6070     CVE-2018-6071

Tenable has extracted the preceding description block directly from the Fedora 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 Redhat Enterprise Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2017:3401 advisory.

  - chromium-browser: out of bounds write in quic (CVE-2017-15407)

  - chromium-browser: heap buffer overflow in pdfium (CVE-2017-15408)

  - chromium-browser: out of bounds write in skia (CVE-2017-15409)

  - chromium-browser: use after free in pdfium (CVE-2017-15410, CVE-2017-15411)

  - libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c (CVE-2017-15412)

  - chromium-browser: type confusion in webassembly (CVE-2017-15413)

  - chromium-browser: pointer information disclosure in ipc call (CVE-2017-15415)

  - chromium-browser: out of bounds read in blink (CVE-2017-15416)

  - chromium-browser: cross origin information disclosure in skia (CVE-2017-15417)

  - chromium-browser: use of uninitialized value in skia (CVE-2017-15418)

  - chromium-browser: cross origin leak of redirect url in blink (CVE-2017-15419)

  - chromium-browser: url spoofing in omnibox (CVE-2017-15420)

  - chromium-browser: integer overflow in icu (CVE-2017-15422)

  - chromium-browser: issue with spake implementation in boringssl (CVE-2017-15423)

  - chromium-browser: url spoof in omnibox (CVE-2017-15424, CVE-2017-15425, CVE-2017-15426)

  - chromium-browser: insufficient blocking of javascript in omnibox (CVE-2017-15427)

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

The version of Google Chrome installed on the remote Windows host is prior to 63.0.3239.84. It is, therefore, affected by multiple vulnerabilities as referenced in the 2017_12_stable-channel-update-for-desktop advisory.

  - Type confusion in WebAssembly in V8 in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to     potentially exploit heap corruption via a crafted HTML page. (CVE-2017-15413)

  - Out-of-bounds Write in the QUIC networking stack in Google Chrome prior to 63.0.3239.84 allowed a remote     attacker to gain code execution via a malicious server. (CVE-2017-15407)

  - Heap buffer overflow in Omnibox in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to     potentially exploit heap corruption via a crafted PDF file that is mishandled by PDFium. (CVE-2017-15408)

  - Heap buffer overflow in Skia in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to     potentially exploit heap corruption via a crafted HTML page. (CVE-2017-15409)

  - Use after free in PDFium in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to potentially     exploit heap corruption via a crafted PDF file. (CVE-2017-15410, CVE-2017-15411)

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

This update to Chromium 63.0.3239.84 fixes the following security issues :

  - CVE-2017-15408: Heap buffer overflow in PDFium

  - CVE-2017-15409: Out of bounds write in Skia

  - CVE-2017-15410: Use after free in PDFium

  - CVE-2017-15411: Use after free in PDFium

  - CVE-2017-15412: Use after free in libXML

  - CVE-2017-15413: Type confusion in WebAssembly

  - CVE-2017-15415: Pointer information disclosure in IPC     call

  - CVE-2017-15416: Out of bounds read in Blink

  - CVE-2017-15417: Cross origin information disclosure in     Skia

  - CVE-2017-15418: Use of uninitialized value in Skia

  - CVE-2017-15419: Cross origin leak of redirect URL in     Blink

  - CVE-2017-15420: URL spoofing in Omnibox

  - CVE-2017-15422: Integer overflow in ICU

  - CVE-2017-15423: Issue with SPAKE implementation in     BoringSSL

  - CVE-2017-15424: URL Spoof in Omnibox

  - CVE-2017-15425: URL Spoof in Omnibox

  - CVE-2017-15426: URL Spoof in Omnibox

  - CVE-2017-15427: Insufficient blocking of JavaScript in     Omnibox

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1190 advisory.

    The libxml2 library is a development toolbox providing the implementation of various XML standards.

    Security Fix(es):

    * libxml2: Use after free triggered by XPointer paths beginning with range-to (CVE-2016-5131)

    * libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c (CVE-2017-15412)

    * libxml2: DoS caused by incorrect error detection during XZ decompression (CVE-2015-8035)

    * libxml2: NULL pointer dereference in xmlXPathCompOpEval() function in xpath.c (CVE-2018-14404)

    * libxml2: Unrestricted memory usage in xz_head() function in xzlib.c (CVE-2017-18258)

    * libxml2: Infinite loop caused by incorrect error detection during LZMA decompression (CVE-2018-14567)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 version of AOS installed on the remote host is prior to 5.18. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.18 advisory.

  - When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to     Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP     connection. If such connections are available to an attacker, they can be exploited in ways that may be     surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped     with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected     (and recommended in the security guide) that this Connector would be disabled if not required. This     vulnerability report identified a mechanism that allowed: - returning arbitrary files from anywhere in the     web application - processing any file in the web application as a JSP Further, if the web application     allowed file upload and stored those files within the web application (or the attacker was able to control     the content of the web application by some other means) then this, along with the ability to process a     file as a JSP, made remote code execution possible. It is important to note that mitigation is only     required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth     approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to     Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP     Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading     to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.
    (CVE-2020-1938)

  - rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel through 5.3.6 lacks a     certain upper-bound check, leading to a buffer overflow. (CVE-2019-17666)

  - The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-     free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c,     include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can     occur with FUSE requests. (CVE-2019-11487)

  - A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where,     the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (TAA) error     occurs. When a guest is running on a host CPU affected by the TAA flaw (TAA_NO=0), but is not affected by     the MDS issue (MDS_NO=1), the guest was to clear the affected buffers by using a VERW instruction     mechanism. But when the MDS_NO=1 bit was exported to the guests, the guests did not use the VERW mechanism     to clear the affected buffers. This issue affects guests running on Cascade Lake CPUs and requires that     host has 'TSX' enabled. Confidentiality of data is the highest threat associated with this vulnerability.
    (CVE-2019-19338)

  - The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which     allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.
    (CVE-2015-8035)

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

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
105801	Debian DSA-4086-1 : libxml2 - security update	Nessus	Debian Local Security Checks	2018/1/15	2025/11/6	high
106236	FreeBSD : chromium -- multiple vulnerabilities (1d951e85-ffdb-11e7-8b91-e8e0b747a45a)	Nessus	FreeBSD Local Security Checks	2018/1/23	2025/11/3	high
108786	macOS 10.13.x < 10.13.4 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	2018/4/2	2019/6/19	critical
105153	Google Chrome < 63.0.3239.84 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	2017/12/11	2025/11/24	high
105968	Fedora 27 : chromium (2017-c2645aa935)	Nessus	Fedora Local Security Checks	2018/1/15	2025/11/4	high
135819	Scientific Linux Security Update : libxml2 on SL7.x x86_64 (20200407)	Nessus	Scientific Linux Local Security Checks	2020/4/21	2024/3/15	high
138855	Amazon Linux 2 : libxml2 (ALAS-2020-1466)	Nessus	Amazon Linux Local Security Checks	2020/7/23	2024/12/11	high
105360	Debian DLA-1211-1 : libxml2 security update	Nessus	Debian Local Security Checks	2017/12/19	2025/11/11	high
106708	SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2018:0401-1)	Nessus	SuSE Local Security Checks	2018/2/9	2025/10/30	high
120995	EulerOS 2.0 SP5 : libxml2 (EulerOS-SA-2019-1007)	Nessus	Huawei Local Security Checks	2019/1/8	2024/6/27	high
120695	Fedora 28 : chromium (2018-aafdbb5554)	Nessus	Fedora Local Security Checks	2019/1/3	2025/9/1	high
105091	RHEL 6 : chromium-browser (RHSA-2017:3401)	Nessus	Red Hat Local Security Checks	2017/12/8	2024/4/27	high
105152	Google Chrome < 63.0.3239.84 Multiple Vulnerabilities	Nessus	Windows	2017/12/11	2025/11/24	high
105235	openSUSE Security Update : chromium (openSUSE-2017-1349)	Nessus	SuSE Local Security Checks	2017/12/14	2025/11/11	high
135071	RHEL 7 : libxml2 (RHSA-2020:1190)	Nessus	Red Hat Local Security Checks	2020/4/1	2024/11/7	high
164595	Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.18)	Nessus	Misc.	2022/9/1	2025/9/1	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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