Fedora 34: php 2021-d867b595d1 | LinuxSecurity.com

Advisories

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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         : https://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  - 7.4.21-1
- Update to 7.4.21 - https://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
https://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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Fedora 34: php 2021-d867b595d1

July 7, 2021
**PHP version 7.4.21** (01 Jul 2021) **Core:** * Fixed bug php#81068 (Double free in realpath_cache_clean())

Summary

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.

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)

Change Log

* Tue Jun 29 2021 Remi Collet - 7.4.21-1 - Update to 7.4.21 - https://www.php.net/releases/7_4_21.php

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

Update Instructions

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 https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
Name : php
Product : Fedora 34
Version : 7.4.21
Release : 1.fc34
URL : https://www.php.net/
Summary : PHP scripting language for creating dynamic web sites

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