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Amazon Linux AMI 2: CVE-2021-21708: Security patch for php (ALASPHP8.0-2023-007)

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Amazon Linux AMI 2: CVE-2021-21708: Security patch for php (ALASPHP8.0-2023-007)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
02/27/2022
Created
09/14/2023
Added
09/14/2023
Modified
09/14/2023

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)

  • amazon-linux-ami-2-upgrade-php
  • amazon-linux-ami-2-upgrade-php-bcmath
  • amazon-linux-ami-2-upgrade-php-cli
  • amazon-linux-ami-2-upgrade-php-common
  • amazon-linux-ami-2-upgrade-php-dba
  • amazon-linux-ami-2-upgrade-php-dbg
  • amazon-linux-ami-2-upgrade-php-debuginfo
  • amazon-linux-ami-2-upgrade-php-devel
  • amazon-linux-ami-2-upgrade-php-embedded
  • amazon-linux-ami-2-upgrade-php-enchant
  • amazon-linux-ami-2-upgrade-php-fpm
  • amazon-linux-ami-2-upgrade-php-gd
  • amazon-linux-ami-2-upgrade-php-gmp
  • amazon-linux-ami-2-upgrade-php-intl
  • amazon-linux-ami-2-upgrade-php-ldap
  • amazon-linux-ami-2-upgrade-php-mbstring
  • amazon-linux-ami-2-upgrade-php-mysqlnd
  • amazon-linux-ami-2-upgrade-php-odbc
  • amazon-linux-ami-2-upgrade-php-opcache
  • amazon-linux-ami-2-upgrade-php-pdo
  • amazon-linux-ami-2-upgrade-php-pgsql
  • amazon-linux-ami-2-upgrade-php-process
  • amazon-linux-ami-2-upgrade-php-pspell
  • amazon-linux-ami-2-upgrade-php-snmp
  • amazon-linux-ami-2-upgrade-php-soap
  • amazon-linux-ami-2-upgrade-php-sodium
  • amazon-linux-ami-2-upgrade-php-xml

References

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