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Ubuntu: (Multiple Advisories) (CVE-2021-21707): PHP vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-21707): PHP vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
11/29/2021
Created
03/16/2022
Added
02/23/2022
Modified
11/15/2024

Description

In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.

Solution(s)

  • ubuntu-pro-upgrade-php7-0-cgi
  • ubuntu-pro-upgrade-php7-0-cli
  • ubuntu-pro-upgrade-php7-0-fpm
  • ubuntu-pro-upgrade-php7-2-cgi
  • ubuntu-pro-upgrade-php7-2-cli
  • ubuntu-pro-upgrade-php7-2-fpm
  • ubuntu-pro-upgrade-php7-4-cgi
  • ubuntu-pro-upgrade-php7-4-cli
  • ubuntu-pro-upgrade-php7-4-fpm
  • ubuntu-pro-upgrade-php8-0-cgi
  • ubuntu-pro-upgrade-php8-0-cli
  • ubuntu-pro-upgrade-php8-0-fpm

References

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