ESB-2018.1946.2 - UPDATE [Linux][Ubuntu] PHP 7: Multiple vulnerabilities 2018-07-06

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.1946.2
                PHP 7 DoS vulnerability patched for Ubuntu
                                6 July 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           PHP 7
Publisher:         Ubuntu
Operating System:  Ubuntu
                   Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-12882  

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3702-1
   http://www.ubuntu.com/usn/usn-3702-2

Comment: This bulletin contains two (2) Ubuntu security advisories.
         
         This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running PHP 7 check for an updated version of the software for their
         operating system.

Revision History:  July 6 2018: Original patch did not contain the fix.
                   July 5 2018: Initial Release

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Ubuntu Security Notice USN-3702-1
July 04, 2018

php7.2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 18.04 LTS

Summary:

PHP could be made to crash or run programs if it opened a specially crafted
file.

Software Description:
- - php7.2: HTML-embedded scripting language interpreter

Details:

It was discovered that PHP incorrectly handled exif tags in certain images.
A remote attacker could use this issue to cause PHP to crash, resulting in
a denial of service, or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
  libapache2-mod-php7.2           7.2.7-0ubuntu0.18.04.1
  php7.2-cgi                      7.2.7-0ubuntu0.18.04.1
  php7.2-cli                      7.2.7-0ubuntu0.18.04.1
  php7.2-fpm                      7.2.7-0ubuntu0.18.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
  https://usn.ubuntu.com/usn/usn-3702-1
  CVE-2018-12882

Package Information:
  https://launchpad.net/ubuntu/+source/php7.2/7.2.7-0ubuntu0.18.04.1

- --------------------------------------------------------------------------------

==========================================================================
Ubuntu Security Notice USN-3702-2
July 05, 2018

php7.2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 18.04 LTS

Summary:

PHP could be made to crash or run programs if it opened a specially crafted
file.

Software Description:
- - php7.2: HTML-embedded scripting language interpreter

Details:

USN-3702-1 fixed a vulnerability in PHP. PHP 7.2.7 did not actually include
the fix for CVE-2018-12882. This update adds a backported patch to correct
the issue.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that PHP incorrectly handled exif tags in certain images.
 A remote attacker could use this issue to cause PHP to crash, resulting in
 a denial of service, or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
  libapache2-mod-php7.2           7.2.7-0ubuntu0.18.04.2
  php7.2-cgi                      7.2.7-0ubuntu0.18.04.2
  php7.2-cli                      7.2.7-0ubuntu0.18.04.2
  php7.2-fpm                      7.2.7-0ubuntu0.18.04.2

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3702-2
  https://usn.ubuntu.com/usn/usn-3702-1
  CVE-2018-12882

Package Information:
  https://launchpad.net/ubuntu/+source/php7.2/7.2.7-0ubuntu0.18.04.2

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