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AUSCERT External Security Bulletin Redistribution
ESB-2021.0239
Drupal core - Critical - Third-party libraries - SA-CORE-2021-001
21 January 2021
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AusCERT Security Bulletin Summary
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Product: Drupal
Publisher: Drupal
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Unauthorised Access -- Unknown/Unspecified
Reduced Security -- Unknown/Unspecified
Resolution: Patch/Upgrade
CVE Names: CVE-2020-36193
Original Bulletin:
https://www.drupal.org/sa-core-2021-001
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Drupal core - Critical - Third-party libraries - SA-CORE-2021-001
Project: Drupal core
Date: 2021-January-20
Security risk: Critical 18∕25 AC:Complex/A:User/CI:All/II:All/E:Exploit/TD:Uncommon
Vulnerability: Third-party libraries
Description:
The Drupal project uses the pear Archive_Tar library, which has released a
security update that impacts Drupal. For more information please see:
CVE-2020-36193
Exploits may be possible if Drupal is configured to allow .tar, .tar.gz, .bz2, or
.tlz file uploads and processes them.
Solution:
Install the latest version:
If you are using Drupal 9.1, update to Drupal 9.1.3.
If you are using Drupal 9.0, update to Drupal 9.0.11.
If you are using Drupal 8.9, update to Drupal 8.9.13.
If you are using Drupal 7, update to Drupal 7.78.
Versions of Drupal 8 prior to 8.9.x are end-of-life and do not receive security coverage.
Disable uploads of .tar, .tar.gz, .bz2, or .tlz files to mitigate the vulnerability.
Reported By:
Richard Sheppard
Stephen Cross
Jonathan Danaher
Kim Pepper
Fixed By:
Lee Rowlands of the Drupal Security Team
Drew Webber of the Drupal Security Team
Greg Knaddison of the Drupal Security Team
Vijay Mani Provisional Member of the Drupal Security Team
Jess of the Drupal Security Team
Michael Hess of the Drupal Security Team
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