USN-3095-1: PHP vulnerabilities

4 October 2016

Several security issues were fixed in PHP.

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Releases

Packages

  • php5 - HTML-embedded scripting language interpreter
  • php7.0 - HTML-embedded scripting language interpreter

Details

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)

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Update instructions

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

Ubuntu 16.04
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