libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3739-1 advisory.

  - libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag     directly indicating that the current document may be read but other files may not be opened, which makes     it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.
    (CVE-2016-9318)

  - parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
    (CVE-2017-16932)

  - 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)

  - 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)

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

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2972 advisory.

  - libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag     directly indicating that the current document may be read but other files may not be opened, which makes     it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.
    (CVE-2016-9318)

  - parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
    (CVE-2017-16932)

  - An integer overflow in xmlmemory.c in libxml2 before 2.9.5, as used in Google Chrome prior to 62.0.3202.62     and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted XML     file. (CVE-2017-5130)

  - ** DISPUTED ** libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of     service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states I would     disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least     for XML parser. (CVE-2017-5969)

  - valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes. (CVE-2022-23308)

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

This update for libxml2 fixes the following issues :

Issue fixed :

Fixed a bug related to the fix for CVE-2016-9318 which allowed xsltproc to access the internet even when --nonet was given and also was making docbook-xsl-stylesheets to have incomplete xml catalog file (bsc#1010675, bsc#1126613 and bsc#1110146).

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 Virtualization installation on the remote host is affected by the following vulnerability :

  - libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and     earlier and other products, does not offer a flag     directly indicating that the current document may be     read but other files may not be opened, which makes it     easier for remote attackers to conduct XML External     Entity (XXE) attacks via a crafted     document.i1/4^CVE-2016-9318i1/4%0

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.

This update for libxml2 fixes the following issues :

Security issue fixed :

CVE-2018-14404: Prevent NULL pointer dereference in the xmlXPathCompOpEval() function when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case leading to a denial of service attack (bsc#1102046)

Other Issue fixed: Fixed a bug related to the fix for CVE-2016-9318 which allowed xsltproc to access the internet even when --nonet was given and also was making docbook-xsl-stylesheets to have incomplete xml catalog file (bsc#1010675, bsc#1126613 and bsc#1110146).

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.

An update of the libxml2 package has been released.

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.

This update for libxml2 fixes the following issues: Security issues fixed :

  - CVE-2017-9050: heap-based buffer overflow     (xmlDictAddString func) [bsc#1039069, bsc#1039661]

  - CVE-2017-9049: heap-based buffer overflow     (xmlDictComputeFastKey func) [bsc#1039066]

  - CVE-2017-9048: stack overflow vulnerability     (xmlSnprintfElementContent func) [bsc#1039063]

  - CVE-2017-9047: stack overflow vulnerability     (xmlSnprintfElementContent func) [bsc#1039064] A     clarification for the previously released update: For     CVE-2016-9318 we decided not to ship a fix since it can     break existing setups. Please take appropriate actions     if you parse untrusted XML files and use the new

-noxxe flag if possible (bnc#1010675, bnc#1013930).

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.

This update for libxml2 fixes the following issues :

  - Fix NULL dereference in xpointer.c when in recovery mode     [bsc#1014873]

  - CVE-2016-9597: An XML document with many opening tags     could have caused a overflow of the stack not detected     by the recursion limits, allowing for DoS (bsc#1017497)

  - CVE-2014-0191: External parameter entity loaded when     entity substitution is disabled could cause a DoS.
    (bsc#876652)

  - CVE-2016-9318: XML External Entity (XXE) could be abused     via crafted document. (bsc#1010675)

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 :

  - libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and     earlier and other products, does not offer a flag     directly indicating that the current document may be     read but other files may not be opened, which makes it     easier for remote attackers to conduct XML External     Entity (XXE) attacks via a crafted     documenti1/4Z(CVE-2016-9318)

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.

Update to latest upstream release, includes several security related fixes.

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.

This update for libxml2 fixes the following issues :

  - CVE-2016-4658: use-after-free error could lead to crash     [bsc#1005544]

  - Fix NULL dereference in xpointer.c when in recovery mode     [bsc#1014873]

  - CVE-2016-9597: An XML document with many opening tags     could have caused a overflow of the stack not detected     by the recursion limits, allowing for DoS (bsc#1017497).

For CVE-2016-9318 we decided not to ship a fix since it can break existing setups. Please take appropriate actions if you parse untrusted XML files and use the new -noxxe flag if possible (bnc#1010675, bnc#1013930).

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

This update for libxml2 fixes the following issues :

  - CVE-2016-4658: use-after-free error could lead to crash     [bsc#1005544]

  - Fix NULL dereference in xpointer.c when in recovery mode     [bsc#1014873]

  - CVE-2016-9597: An XML document with many opening tags     could have caused a overflow of the stack not detected     by the recursion limits, allowing for DoS (bsc#1017497).
    For CVE-2016-9318 we decided not to ship a fix since it     can break existing setups. Please take appropriate     actions if you parse untrusted XML files and use the new
    -noxxe flag if possible (bnc#1010675, bnc#1013930).

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.

This update for libxml2 fixes the following issues :

  - CVE-2016-9318: libxml2 did not offer a flag directly     indicating that the current document may be read but     other files may not be opened, which made it easier for     remote attackers to conduct XML External Entity (XXE)     attacks via a crafted document (bsc#1010675).

  - Prevent NULL dereference in xpointer.c and     xmlDumpElementContent, and infinite recursion in     xmlParseConditionalSections when in recovery     mode(bnc#1014873)

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.

ID	Name	Product	Family	Severity
183608	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : libxml2 vulnerabilities (USN-3739-1)	Nessus	Ubuntu Local Security Checks	medium
159615	Debian DLA-2972-1 : libxml2 - LTS security update	Nessus	Debian Local Security Checks	high
126814	SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2019:1896-1)	Nessus	SuSE Local Security Checks	medium
124731	EulerOS Virtualization 2.5.3 : libxml2 (EulerOS-SA-2019-1353)	Nessus	Huawei Local Security Checks	medium
123073	SUSE SLES11 Security Update : libxml2 (SUSE-SU-2019:13985-1)	Nessus	SuSE Local Security Checks	medium
121663	Photon OS 1.0: Libxml2 PHSA-2017-0001	Nessus	PhotonOS Local Security Checks	medium
104492	GLSA-201711-01 : libxml2: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
100780	SUSE SLES11 Security Update : libxml2 (SUSE-SU-2017:1557-1)	Nessus	SuSE Local Security Checks	high
100352	SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2017:1366-1)	Nessus	SuSE Local Security Checks	high
99936	EulerOS 2.0 SP2 : libxml2 (EulerOS-SA-2017-1070)	Nessus	Huawei Local Security Checks	medium
99916	EulerOS 2.0 SP1 : libxml2 (EulerOS-SA-2017-1069)	Nessus	Huawei Local Security Checks	medium
99492	Fedora 24 : libxml2 (2017-be8574d593)	Nessus	Fedora Local Security Checks	critical
99491	Fedora 25 : libxml2 (2017-a3a47973eb)	Nessus	Fedora Local Security Checks	critical
97116	openSUSE Security Update : libxml2 (openSUSE-2017-244)	Nessus	SuSE Local Security Checks	critical
97015	SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2017:0380-1)	Nessus	SuSE Local Security Checks	critical
96566	SUSE SLES11 Security Update : libxml2 (SUSE-SU-2017:0164-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2016-9318

medium

Tenable Plugins

medium

high

medium

medium

medium

medium

critical

high

high

medium

medium

critical

critical

critical

critical

high