USN-2758-1: PHP vulnerabilities

30 September 2015

Several security issues were fixed in PHP.

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Releases

Packages

  • 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-2015-5589)

It was discovered that the PHP phar extension incorrectly handled certain
filepaths. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2015-5590)

Taoguang Chen discovered that PHP incorrectly handled unserializing
objects. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2015-6831, CVE-2015-6834, CVE-2015-6835

Sean Heelan discovered that PHP incorrectly handled unserializing
objects. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2015-6832)

It was discovered that the PHP phar extension incorrectly handled certain
archives. A remote attacker could use this issue to cause files to be
placed outside of the destination directory. (CVE-2015-6833)

Andrea Palazzo discovered that the PHP Soap client incorrectly validated
data types. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2015-6836)

It was discovered that the PHP XSLTProcessor class incorrectly handled
certain data. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service. (CVE-2015-6837)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 15.04
Ubuntu 14.04
Ubuntu 12.04

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

References

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Further reading