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Alma Linux: CVE-2021-21708: Moderate: php security, bug fix, and enhancement update (ALSA-2022-8197)

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Alma Linux: CVE-2021-21708: Moderate: php security, bug fix, and enhancement update (ALSA-2022-8197)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
02/27/2022
Created
11/15/2022
Added
11/14/2022
Modified
04/26/2024

Description

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.

Solution(s)

  • alma-upgrade-php
  • alma-upgrade-php-bcmath
  • alma-upgrade-php-cli
  • alma-upgrade-php-common
  • alma-upgrade-php-dba
  • alma-upgrade-php-dbg
  • alma-upgrade-php-devel
  • alma-upgrade-php-embedded
  • alma-upgrade-php-enchant
  • alma-upgrade-php-ffi
  • alma-upgrade-php-fpm
  • alma-upgrade-php-gd
  • alma-upgrade-php-gmp
  • alma-upgrade-php-intl
  • alma-upgrade-php-ldap
  • alma-upgrade-php-mbstring
  • alma-upgrade-php-mysqlnd
  • alma-upgrade-php-odbc
  • alma-upgrade-php-opcache
  • alma-upgrade-php-pdo
  • alma-upgrade-php-pgsql
  • alma-upgrade-php-process
  • alma-upgrade-php-snmp
  • alma-upgrade-php-soap
  • alma-upgrade-php-xml

References

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