View online: https://www.drupal.org/sa-core-2019-012 Project: Drupal core [1] Version: 8.8.x-dev8.7.x-dev7.x-dev Date: 2019-December-18 Security risk: *Critical* 17∕25 AC:Basic/A:User/CI:All/II:All/E:Proof/TD:Uncommon [2] Vulnerability: Multiple vulnerabilities Description:  The Drupal project uses the third-party library Archive_Tar [3], which has released a security update that impacts some Drupal configurations. Multiple vulnerabilities are possible if Drupal is configured to allow .tar, .tar.gz, .bz2 or .tlz file uploads and processes them. The latest versions of Drupal update Archive_Tar to 1.4.9 to mitigate the file processing vulnerabilities. Solution:  Install the latest version: * If you are using Drupal 7.x, upgrade to Drupal 7.69 [4]. * If you are using Drupal 8.7.x, upgrade to Drupal 8.7.11 [5]. * If you are using Drupal 8.8.x, upgrade to Drupal 8.8.1 [6]. Versions of Drupal 8 prior to 8.7.x are end-of-life and do not receive security coverage. Reported By:  * Jasper Mattsson [7] Fixed By:  * Lee Rowlands [8] of the Drupal Security Team * Peter Wolanin [9] of the Drupal Security Team * Sam Becker [10] * Jasper Mattsson [11] * David Rothstein [12] of the Drupal Security Team * michieltcs [13] * Ayesh Karunaratne [14] * Alex Pott [15] of the Drupal Security Team * Jess [16] of the Drupal Security Team * Samuel Mortenson [17] of the Drupal Security Team * Vijaya Chandran Mani [18] * Drew Webber [19] of the Drupal Security Team [1] https://www.drupal.org/project/drupal [2] https://www.drupal.org/security-team/risk-levels [3] https://pear.php.net/package/Archive_Tar/ [4] https://www.drupal.org/project/drupal/releases/7.69 [5] https://www.drupal.org/project/drupal/releases/8.7.11 [6] https://www.drupal.org/project/drupal/releases/8.8.1 [7] https://www.drupal.org/user/521118 [8] https://www.drupal.org/user/395439 [9] https://www.drupal.org/user/49851 [10] https://www.drupal.org/user/1485048 [11] https://www.drupal.org/user/521118 [12] https://www.drupal.org/user/124982 [13] https://www.drupal.org/user/3587972 [14] https://www.drupal.org/user/796148 [15] https://www.drupal.org/user/157725 [16] https://www.drupal.org/user/65776 [17] https://www.drupal.org/user/2582268 [18] https://www.drupal.org/user/93488 [19] https://www.drupal.org/user/255969