CVE-2020-28949

Archive_Tar: improper filename sanitization leads to file overwrites

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · November 19, 2020

Updated · November 21, 2025

Description

A flaw was found in the Archive_Tar package. PEAR Archive_Tar could allow a local authenticated attacker to bypass security restrictions caused by a stream-wrapper attack. An attacker can overwrite arbitrary files on the system using a specially-crafted tar archive.

Statement

PHP 7.2, 7.3 and 7.4 are all deprecated. There would be no patches made available for php-pear.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

CWE-20 · Improper Input Validation