CVE-2020-7061

Description

In PHP versions 7.3.x below 7.3.15 and 7.4.x below 7.4.3, while extracting PHAR files on Windows using phar extension, certain content inside PHAR file could lead to one-byte read past the allocated buffer. This could potentially lead to information disclosure or crash.

CVSS Metrics

• v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
• v3.1•CRITICAL•Score: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
• v2.0•MEDIUM•Score: 6.4AV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS Trends

Current EPSS score: 3.09%• Percentile: 87%

Techniques & Countermeasures

• CWE-125•Out-of-bounds Read

  The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

• Unknown•PHP

  ≥ 7.3.x, < 7.3.15 | ≥ 7.4.x, < 7.4.3

• Unknown•PHP

  ≥ 7.2.0, ≤ 7.2.27 | ≥ 7.3.0, ≤ 7.3.14 | ≥ 7.4.0, ≤ 7.4.2

• tenable•tenable.sc

  < 5.19.0

References (3)

• https://bugs.php.net/bug.php?id=79171
• https://security.gentoo.org/glsa/202003-57
• https://www.tenable.com/security/tns-2021-14