=========================================================================Ubuntu Security Notice USN-2960-1
May 18, 2016

oxide-qt vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Oxide.

Software Description:
- oxide-qt: Web browser engine for Qt (QML plugin)

Details:

An out of bounds write was discovered in Blink. If a user were tricked in
to opening a specially crafted website, an attacker could potentially
exploit this to cause a denial of service via renderer crash, or execute
arbitrary code. (CVE-2016-1660)

It was discovered that Blink assumes that a frame which passes same-origin
checks is local in some cases. If a user were tricked in to opening a
specially crafted website, an attacker could potentially exploit this to
cause a denial of service via renderer crash, or execute arbitrary code.
(CVE-2016-1661)

A use-after-free was discovered in the V8 bindings in Blink. If a user
were tricked in to opening a specially crafted website, an attacker could
potentially exploit this to cause a denial of service via renderer crash,
or execute arbitrary code. (CVE-2016-1663)

It was discovered that the JSGenericLowering class in V8 mishandles
comparison operators. If a user were tricked in to opening a specially
crafted website, an attacker could potentially exploit this to obtain
sensitive information. (CVE-2016-1665)

Multiple security issues were discovered in Chromium. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to read uninitialized memory, cause a denial
of service via application crash or execute arbitrary code.
(CVE-2016-1666)

It was discovered that the TreeScope::adoptIfNeeded function in Blink
does not prevent script execution during node-adoption operations. If a
user were tricked in to opening a specially crafted website, an attacker
could potentially exploit this to bypass same origin restrictions.
(CVE-2016-1667)

It was discovered that the forEachForBinding in the V8 bindings in Blink
uses an improper creation context. If a user were tricked in to opening a
specially crafted website, an attacker could potentially exploit this to
bypass same origin restrictions. (CVE-2016-1668)

A buffer overflow was discovered in V8. If a user were tricked in to
opening a specially crafted website, an attacker could potentially exploit
this to cause a denial of service via renderer crash, or execute arbitrary
code. (CVE-2016-1669)

A race condition was discovered in ResourceDispatcherHostImpl in Chromium.
An attacker could potentially exploit this to make arbitrary HTTP
requests. (CVE-2016-1670)

Update instructions:

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

Ubuntu 16.04 LTS:
  liboxideqtcore0                 1.14.9-0ubuntu0.16.04.1

Ubuntu 15.10:
  liboxideqtcore0                 1.14.9-0ubuntu0.15.10.1

Ubuntu 14.04 LTS:
  liboxideqtcore0                 1.14.9-0ubuntu0.14.04.1

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

References:
  https://ubuntu.com/security/notices/USN-2960-1
  CVE-2016-1660, CVE-2016-1661, CVE-2016-1663, CVE-2016-1665,
  CVE-2016-1666, CVE-2016-1667, CVE-2016-1668, CVE-2016-1669,
  CVE-2016-1670

Package Information:
  https://launchpad.net/ubuntu/+source/oxide-qt/1.14.9-0ubuntu0.16.04.1
  https://launchpad.net/ubuntu/+source/oxide-qt/1.14.9-0ubuntu0.15.10.1
  https://launchpad.net/ubuntu/+source/oxide-qt/1.14.9-0ubuntu0.14.04.1