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Vulnerability of SQLite: NULL pointer dereference via flattenSubquery

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via flattenSubquery() of SQLite, in order to trigger a denial of service.
Vulnerable products: Debian, Chrome, Edge Chromium, MySQL Community, MySQL Enterprise, openSUSE Leap, Opera, Percona Server, RHEL, SQLite, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this weakness: 2/4.
Creation date: 05/02/2020.
Références of this bulletin: ADV200002, cpuapr2020, CVE-2019-19923, DSA-4638-1, openSUSE-SU-2020:0189-1, openSUSE-SU-2020:0210-1, openSUSE-SU-2020:0233-1, RHSA-2020:0514-01, RHSA-2020:1810-01, USN-4298-1, USN-4298-2, VIGILANCE-VUL-31518.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via flattenSubquery() of SQLite, in order to trigger a denial of service.
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This computer weakness impacts software or systems such as Debian, Chrome, Edge Chromium, MySQL Community, MySQL Enterprise, openSUSE Leap, Opera, Percona Server, RHEL, SQLite, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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

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

Solutions for this threat 

SQLite: patch for flattenSubquery.
A patch is indicated in information sources.

Debian 10: new chromium packages.
New packages are available:
  Debian 10: chromium 80.0.3987.132-1~deb10u1

Google Chrome: version 80.0.3987.87.
The version 80.0.3987.87 is fixed:
  https://www.google.fr/chrome/

Microsoft Edge Chromium: version 80.0.361.48.
The version 80.0.361.48 is fixed:
  https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV200002

openSUSE Leap 15.1: new chromium packages.
New packages are available:
  openSUSE Leap 15.1: chromium 80.0.3987.87-lp151.2.63.1

Oracle MySQL: version 5.6.48.
The version 5.6.48 is fixed:
  https://support.oracle.com/rs?type=doc&id=2648128.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Oracle MySQL: version 5.7.30.
The version 5.7.30 is fixed:
  https://support.oracle.com/rs?type=doc&id=2648128.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Oracle MySQL: version 8.0.20.
The version 8.0.20 is fixed:
  https://support.oracle.com/rs?type=doc&id=2648128.1
  https://www.mysql.com/fr/downloads/
  https://dev.mysql.com/downloads/mysql/

Percona Server: version 5.6.48-88.0.
The version 5.6.48-88.0 is fixed.

RHEL 6.10: new chromium packages.
New packages are available:
  RHEL 6.10: chromium browser-80.0.3987.87-1.el6_10

RHEL 8: new sqlite packages (29/04/2020).
New packages are available:
  RHEL 8.0-8.1: sqlite 3.26.0-6.el8

SUSE LE 12: new chromium packages.
New packages are available:
  SUSE LE 12 RTM-SP5: chromium 80.0.3987.87-31.1

SUSE LE 15 SP1: new chromium packages.
New packages are available:
  SUSE LE 15 SP1: chromium 80.0.3987.87-bp151.3.59.1

Ubuntu: new sqlite3 packages.
New packages are available:
  Ubuntu 19.10: sqlite3 3.29.0-2ubuntu0.2
  Ubuntu 18.04 LTS: sqlite3 3.22.0-1ubuntu0.3
  Ubuntu 16.04 LTS: sqlite3 3.11.0-1ubuntu1.4
  Ubuntu 14.04 ESM: sqlite3 3.8.2-1ubuntu2.2+esm2

Wind River Linux: version 10.17.41.20.
The version 10.17.41.20 is fixed:
  https://support2.windriver.com/

Wind River Linux: version 10.19.45.3.
The version 10.19.45.3 is fixed:
  https://support2.windriver.com/
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