ESB-2018.0433 - [Ubuntu] php5: Multiple vulnerabilities 2018-02-13

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0433
                            PHP vulnerabilities
                             13 February 2018

===========================================================================

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

Product:           php5
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                   Denial of Service               -- Remote/Unauthenticated      
                   Cross-site Scripting            -- Remote with User Interaction
                   Access Confidential Data        -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-5712 CVE-2017-16642 CVE-2017-12933

Reference:         ESB-2018.0091
                   ESB-2018.0092

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3566-1

- --------------------------BEGIN INCLUDED TEXT--------------------

Ubuntu Security Notice USN-3566-1

12th February, 2018
php5 vulnerabilities

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

    Ubuntu 14.04 LTS

Summary

Several security issues were fixed in PHP.

Software description

    php5 - HTML-embedded scripting language interpreter

Details

It was discovered that PHP incorrectly handled the PHAR 404 error page. A
remote attacker could possibly use this issue to conduct cross-site
scripting (XSS) attacks. (CVE-2018-5712)

It was discovered that PHP incorrectly handled memory when unserializing
certain data. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-12933)

It was discovered that PHP incorrectly handled 'front of' and 'back of'
date directives. A remote attacker could possibly use this issue to obtain
sensitive information. (CVE-2017-16642)

Update instructions

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

Ubuntu 14.04 LTS:
    php5-cli 5.5.9+dfsg-1ubuntu4.23 
    php5-cgi 5.5.9+dfsg-1ubuntu4.23 
    libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.23 
    php5-fpm 5.5.9+dfsg-1ubuntu4.23 

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2017-12933, CVE-2017-16642, CVE-2018-5712

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=kkq9
-----END PGP SIGNATURE-----

« Back to bulletins