Ubuntu Security Notice 2126-1 - Bernd Melchers discovered that PHP's embedded libmagic library incorrectly handled indirect offset values. An attacker could use this issue to cause PHP to consume resources or crash, resulting in a denial of service. It was discovered that PHP incorrectly handled certain values when using the imagecrop function. An attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service, obtain sensitive information, or possibly execute arbitrary code. This issue only affected Ubuntu 13.10. Various other issues were also addressed.
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Ubuntu Security Notice USN-2126-1
March 03, 2014
php5 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary:
Several security issues were fixed in PHP.
Software Description:
- php5: HTML-embedded scripting language interpreter
Details:
Bernd Melchers discovered that PHP's embedded libmagic library incorrectly
handled indirect offset values. An attacker could use this issue to cause
PHP to consume resources or crash, resulting in a denial of service.
(CVE-2014-1943)
It was discovered that PHP incorrectly handled certain values when using
the imagecrop function. An attacker could possibly use this issue to cause
PHP to crash, resulting in a denial of service, obtain sensitive
information, or possibly execute arbitrary code. This issue only affected
Ubuntu 13.10. (CVE-2013-7226, CVE-2013-7327, CVE-2013-7328, CVE-2014-2020)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 13.10:
libapache2-mod-php5 5.5.3+dfsg-1ubuntu2.2
php5-cgi 5.5.3+dfsg-1ubuntu2.2
php5-cli 5.5.3+dfsg-1ubuntu2.2
php5-gd 5.5.3+dfsg-1ubuntu2.2
Ubuntu 12.10:
libapache2-mod-php5 5.4.6-1ubuntu1.7
php5-cgi 5.4.6-1ubuntu1.7
php5-cli 5.4.6-1ubuntu1.7
php5-gd 5.4.6-1ubuntu1.7
Ubuntu 12.04 LTS:
libapache2-mod-php5 5.3.10-1ubuntu3.10
php5-cgi 5.3.10-1ubuntu3.10
php5-cli 5.3.10-1ubuntu3.10
php5-gd 5.3.10-1ubuntu3.10
Ubuntu 10.04 LTS:
libapache2-mod-php5 5.3.2-1ubuntu4.23
php5-cgi 5.3.2-1ubuntu4.23
php5-cli 5.3.2-1ubuntu4.23
php5-gd 5.3.2-1ubuntu4.23
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2126-1
CVE-2013-7226, CVE-2013-7327, CVE-2013-7328, CVE-2014-1943,
CVE-2014-2020
Package Information:
https://launchpad.net/ubuntu/+source/php5/5.5.3+dfsg-1ubuntu2.2
https://launchpad.net/ubuntu/+source/php5/5.4.6-1ubuntu1.7
https://launchpad.net/ubuntu/+source/php5/5.3.10-1ubuntu3.10
https://launchpad.net/ubuntu/+source/php5/5.3.2-1ubuntu4.23