Ubuntu Security Notice 2786-1 - It was discovered that the PHP phar extension incorrectly handled certain files. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service.
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Ubuntu Security Notice USN-2786-1
October 28, 2015
php5 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10
- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary:
PHP could be made to crash if it processed a specially crafted file.
Software Description:
- php5: HTML-embedded scripting language interpreter
Details:
It was discovered that the PHP phar extension incorrectly handled certain
files. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service. (CVE-2015-7803, CVE-2015-7804)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.10:
libapache2-mod-php5 5.6.11+dfsg-1ubuntu3.1
php5-cgi 5.6.11+dfsg-1ubuntu3.1
php5-cli 5.6.11+dfsg-1ubuntu3.1
php5-fpm 5.6.11+dfsg-1ubuntu3.1
Ubuntu 15.04:
libapache2-mod-php5 5.6.4+dfsg-4ubuntu6.4
php5-cgi 5.6.4+dfsg-4ubuntu6.4
php5-cli 5.6.4+dfsg-4ubuntu6.4
php5-fpm 5.6.4+dfsg-4ubuntu6.4
Ubuntu 14.04 LTS:
libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.14
php5-cgi 5.5.9+dfsg-1ubuntu4.14
php5-cli 5.5.9+dfsg-1ubuntu4.14
php5-fpm 5.5.9+dfsg-1ubuntu4.14
Ubuntu 12.04 LTS:
libapache2-mod-php5 5.3.10-1ubuntu3.21
php5-cgi 5.3.10-1ubuntu3.21
php5-cli 5.3.10-1ubuntu3.21
php5-fpm 5.3.10-1ubuntu3.21
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2786-1
CVE-2015-7803, CVE-2015-7804
Package Information:
https://launchpad.net/ubuntu/+source/php5/5.6.11+dfsg-1ubuntu3.1
https://launchpad.net/ubuntu/+source/php5/5.6.4+dfsg-4ubuntu6.4
https://launchpad.net/ubuntu/+source/php5/5.5.9+dfsg-1ubuntu4.14
https://launchpad.net/ubuntu/+source/php5/5.3.10-1ubuntu3.21