CVE-2020-7061

heap-based buffer overflow in phar_extract_file

Publication Date2020-01-26
SeverityLow
TypeInformation Disclosure
Affected PHP Versions
  • 7.3.0 - 7.3.14
  • 7.4.0 - 7.4.2
Fixed Product Versions
  • ZendPHP 5.6
  • ZendPHP 7.1
  • ZendPHP 7.2
  • ZendPHP 7.3
  • ZendPHP 7.4
  • ZendServer 2019.0.4

CVE Details

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 the phar extension, certain content inside a PHAR file could lead to reading one-byte past the allocated buffer. This could potentially lead to information disclosure or crash.

Recommendations

Upgrade to PHP 7.3.15 or higher, or 7.4.3 or higher.