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Fedora Update Notification
FEDORA-2021-d867b595d1
2021-07-08 00:56:09.139786
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Name        : php
Product     : Fedora 34
Version     : 7.4.21
Release     : 1.fc34
URL         : http://www.php.net/
Summary     : PHP scripting language for creating dynamic web sites
Description :
PHP is an HTML-embedded scripting language. PHP attempts to make it
easy for developers to write dynamically generated web pages. PHP also
offers built-in database integration for several commercial and
non-commercial database management systems, so writing a
database-enabled webpage with PHP is fairly simple. The most common
use of PHP coding is probably as a replacement for CGI scripts.

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Update Information:

**PHP version 7.4.21** (01 Jul 2021)  **Core:**  * Fixed bug php#81068 (Double
free in realpath_cache_clean()). (Dimitry Andric) * Fixed bug php#76359
(open_basedir bypass through adding ".."). (cmb) * Fixed bug php#81090
 (Typed
property performance degradation with .= operator). (Nikita) * Fixed bug
php#81070 (Integer underflow in memory limit comparison). (Peter van Dommelen)
 *
Fixed bug php#81122 (SSRF bypass in FILTER_VALIDATE_URL). (**CVE-2021-21705**)
(cmb)  **Bzip2:**  * Fixed bug php#81092 (fflush before stream_filter_remove
corrupts stream). (cmb)  **OpenSSL:**  * Fixed bug php#76694 (native Windows
cert verification uses CN as sever name). (cmb)  **PDO_Firebird:**  * Fixed bug
php#76448 (Stack buffer overflow in firebird_info_cb). (**CVE-2021-21704**)
(cmb) * Fixed bug php#76449 (SIGSEGV in firebird_handle_doer).
(**CVE-2021-21704**) (cmb) * Fixed bug php#76450 (SIGSEGV in
firebird_stmt_execute). (**CVE-2021-21704**) (cmb) * Fixed bug php#76452 (Crash
while parsing blob data in firebird_fetch_blob). (**CVE-2021-21704**) (cmb)
**Standard:**  * Fixed bug php#81048 (phpinfo(INFO_VARIABLES) "Array to
 string
conversion"). (cmb)
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ChangeLog:

* Tue Jun 29 2021 Remi Collet <remi@remirepo.net> - 7.4.21-1
- Update to 7.4.21 - http://www.php.net/releases/7_4_21.php
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References:

  [ 1 ] Bug #1978755 - CVE-2021-21705 php: SSRF bypass in FILTER_VALIDATE_URL
        https://bugzilla.redhat.com/show_bug.cgi?id=1978755
  [ 2 ] Bug #1978790 - CVE-2021-21704 php: security issues in pdo_firebase
 module
        https://bugzilla.redhat.com/show_bug.cgi?id=1978790
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-d867b595d1' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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