CVE-2020-28949—PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability

PUBLISHEDvulnerability record
2022-08-25 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2020-28949
Project:
PEAR
Product:
Archive_Tar
Date Added:
2022-08-25
Due Date:
2022-09-15
Last Updated:
June 21, 2025

Vulnerability Name

PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability

Description

PEAR Archive_Tar allows an unserialization attack because phar: is blocked but PHAR: is not blocked. PEAR stands for PHP Extension and Application Repository and it is an open-source framework and distribution system for reusable PHP components with known usage in third-party products such as Drupal Core and Red Hat Linux.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply updates per vendor instructions.

Additional Notes

  • https://pear.php.net/bugs/bug.php?id=27002, https://www.drupal.org/sa-core-2020-013, https://access.redhat.com/security/cve/cve-2020-28949
  • https://nvd.nist.gov/vuln/detail/CVE-2020-28949

Related Weaknesses

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