Source: php8.1 Version: 8.1.2-1 Severity: grave Tags: security upstream Justification: user security hole Forwarded: https://bugs.php.net/81708 X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Hi, The following vulnerability was published for php8.1. CVE-2021-21708[0]: | In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x | below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT | filter and min/max limits, if the filter fails, there is a possibility | to trigger use of allocated memory after free, which can result it | crashes, and potentially in overwrite of other memory chunks and RCE. | This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max | limits. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2021-21708 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21708 [1] https://bugs.php.net/81708 Regards, Salvatore
