Several security issues were fixed in PHP.
Taoguang Chen discovered that PHP incorrectly handled certain invalid objects when unserializing 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-2016-7124)
4 October 2016
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in PHP.
Taoguang Chen discovered that PHP incorrectly handled certain invalid objects when unserializing 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-2016-7124)
Taoguang Chen discovered that PHP incorrectly handled invalid session names. A remote attacker could use this issue to inject arbitrary session data. (CVE-2016-7125)
It was discovered that PHP incorrectly handled certain gamma values in the imagegammacorrect function. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7127)
It was discovered that PHP incorrectly handled certain crafted TIFF image thumbnails. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly expose sensitive information. (CVE-2016-7128)
It was discovered that PHP incorrectly handled unserializing certain wddxPacket XML documents. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7129, CVE-2016-7130, CVE-2016-7131, CVE-2016-7132, CVE-2016-7413)
It was discovered that PHP incorrectly handled certain memory operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-7133)
It was discovered that PHP incorrectly handled long strings in curl_escape calls. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-7134)
Taoguang Chen discovered that PHP incorrectly handled certain failures when unserializing data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-7411)
It was discovered that PHP incorrectly handled certain flags in the MySQL driver. Malicious remote MySQL servers could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7412)
It was discovered that PHP incorrectly handled ZIP file signature verification when processing a PHAR archive. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7414)
It was discovered that PHP incorrectly handled certain locale operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7416)
It was discovered that PHP incorrectly handled SplArray unserializing. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7417)
Ke Liu discovered that PHP incorrectly handled unserializing wddxPacket XML documents with incorrect boolean elements. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7418)
The problem can be corrected by updating your system to the following package versions:
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.
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