The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of libxml2: NULL pointer dereference via xpath.c-xmlXPathCompOpEval

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via xpath.c:xmlXPathCompOpEval() of libxml2, in order to trigger a denial of service.
Impacted software: Debian, VNX Operating Environment, VNX Series, libxml, openSUSE Leap, Solaris, RHEL, SIMATIC, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this computer vulnerability: 2/4.
Creation date: 20/07/2018.
Références of this announce: 901817, bulletinapr2019, CVE-2018-14404, DLA-1524-1, DLA-2369-1, DSA-2020-030, openSUSE-SU-2018:3107-1, openSUSE-SU-2018:3110-1, openSUSE-SU-2019:0185-1, RHSA-2020:1190-01, RHSA-2020:1827-01, SSB-439005, SUSE-SU-2018:3080-1, SUSE-SU-2018:3081-1, SUSE-SU-2019:0272-1, SUSE-SU-2019:13985-1, USN-3739-1, USN-3739-2, VIGILANCE-VUL-26812.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via xpath.c:xmlXPathCompOpEval() of libxml2, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This weakness impacts software or systems such as Debian, VNX Operating Environment, VNX Series, libxml, openSUSE Leap, Solaris, RHEL, SIMATIC, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability announce is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this threat bulletin.

Solutions for this threat 

libxml2: version 2.9.9.
The version 2.9.9 is fixed:
  ftp://xmlsoft.org/libxml2/

libxml2: solution for xpath.c-xmlXPathCompOpEval.
A new version is available now: VIGILANCE-SOL-63238.

Debian 8: new libxml2 packages.
New packages are available:
  Debian 8: libxml2 2.9.1+dfsg1-5+deb8u7

Debian 9: new libxml2 packages.
New packages are available:
  Debian 9: libxml2 2.9.4+dfsg1-2.2+deb9u3

Dell EMC VNXe3200: version 3.1.11.10003441.
The version 3.1.11.10003441 is fixed:
  https://www.dell.com/support/

openSUSE Leap 15.0: new libxml2 packages.
New packages are available:
  openSUSE Leap 15.0: libxml2 2-2.9.7-lp150.2.3.1

openSUSE Leap 15.0: new rmt-server packages.
New packages are available:
  openSUSE Leap 15.0: rmt-server 1.1.1-lp150.2.12.1

openSUSE Leap 42.3: new libxml2 packages.
New packages are available:
  openSUSE Leap 42.3: libxml2 2-2.9.4-18.1

Oracle Solaris: patch for third party software of April 2019 v1.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 7: new libxml2 packages.
New packages are available:
  RHEL 7.0-7.7: libxml2 2.9.1-6.el7.4

RHEL 8: new libxml2 packages.
New packages are available:
  RHEL 8.0-8.1: libxml2 2.9.7-7.el8

SIMATIC S7-1500 CPU 1518: workaround for GNU/Linux Vulnerabilities.
A workaround is indicated in the information source.

SUSE LE 11 SP4: new libxml2 packages.
New packages are available:
  SUSE LE 11 SP4: libxml2 2.7.6-0.77.15.1

SUSE LE 12 SP3: new libxml2 packages.
New packages are available:
  SUSE LE 12 SP3: libxml2 2-2.9.4-46.15.1

SUSE LE 15: new libxml2 packages.
New packages are available:
  SUSE LE 15 RTM: libxml2 2-2.9.7-3.3.1

SUSE LE 15: new rmt-server packages.
New packages are available:
  SUSE LE 15 RTM: rmt-server 1.1.1-3.13.1

Ubuntu: new libxml2 packages.
New packages are available:
  Ubuntu 18.04 LTS: libxml2 2.9.4+dfsg1-6.1ubuntu1.2
  Ubuntu 16.04 LTS: libxml2 2.9.3+dfsg1-1ubuntu0.6
  Ubuntu 14.04 LTS: libxml2 2.9.1+dfsg1-3ubuntu4.13
  Ubuntu 12.04 ESM: libxml2 2.7.8.dfsg-5.1ubuntu4.21

Wind River Linux: solution (16/10/2018).
The solution is indicated in information sources.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a system vulnerability bulletin. The technology watch team tracks security threats targeting the computer system.