RHSA-2015:1219 - Security Advisory

Topic

Updated php54-php packages that fix multiple security issues are now
available for Red Hat Software Collections 2.

Red Hat Product Security has rated this update as having Moderate security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.

Description

PHP is an HTML-embedded scripting language commonly used with the Apache
HTTP Server.

A flaw was found in the way PHP parsed multipart HTTP POST requests. A
specially crafted request could cause PHP to use an excessive amount of CPU
time. (CVE-2015-4024)

An integer overflow flaw leading to a heap-based buffer overflow was found
in the way PHP's FTP extension parsed file listing FTP server responses. A
malicious FTP server could use this flaw to cause a PHP application to
crash or, possibly, execute arbitrary code. (CVE-2015-4022)

It was found that certain PHP functions did not properly handle file names
containing a NULL character. A remote attacker could possibly use this flaw
to make a PHP script access unexpected files and bypass intended file
system access restrictions. (CVE-2015-4025, CVE-2015-4026, CVE-2015-4598)

An integer underflow flaw leading to out-of-bounds memory access was found
in the way PHP's Phar extension parsed Phar archives. A specially crafted
archive could cause PHP to crash or, possibly, execute arbitrary code when
opened. (CVE-2015-4021)

All php54-php users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. After installing
the updated packages, the httpd service must be restarted for the update
to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.6 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.5 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.4 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.3 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.2 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.1 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.6 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.5 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Server) from RHUI 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) from RHUI 1 for RHEL 6 x86_64

Fixes

• BZ - 1222485 - CVE-2015-4024 php: multipart/form-data request parsing CPU usage DoS
• BZ - 1223408 - CVE-2015-4025 php: CVE-2006-7243 regressions in 5.4+
• BZ - 1223412 - CVE-2015-4022 php: integer overflow leading to heap overflow when reading FTP file listing
• BZ - 1223422 - CVE-2015-4026 php: pcntl_exec() accepts paths with NUL character
• BZ - 1223425 - CVE-2015-4021 php: memory corruption in phar_parse_tarfile caused by empty entry file name
• BZ - 1232897 - CVE-2015-4598 php: missing null byte checks for paths in DOM and GD extensions

CVEs

• CVE-2015-4598
• CVE-2015-4026
• CVE-2015-4021
• CVE-2015-4022
• CVE-2015-4025
• CVE-2015-4024
• CVE-2015-4643
• CVE-2015-4644

References

• https://access.redhat.com/security/updates/classification/#moderate