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Ubuntu Security Notice USN-2495-1
February 10, 2015

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

- Ubuntu 14.10
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Oxide.

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

Details:

A use-after-free bug was discovered in the DOM implementation 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 with the privileges of the sandboxed
render process. (CVE-2015-1209)

It was discovered that V8 did not properly consider frame access
restrictions when throwing exceptions in some circumstances. If a user
were tricked in to opening a specially crafted website, an attacker could
potentially exploit this to bypass same origin restrictions.
(CVE-2015-1210)

It was discovered that Chromium did not properly restrict the URI scheme
during ServiceWorker registration. If a user were tricked in to
downloading and opening a specially crafted HTML file, an attacker could
potentially exploit this to bypass security restrictions. (CVE-2015-1211)

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 with the
privileges of the user invoking the program. (CVE-2015-1212)

Update instructions:

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

Ubuntu 14.10:
  liboxideqtcore0                 1.4.3-0ubuntu0.14.10.1
  oxideqt-codecs                  1.4.3-0ubuntu0.14.10.1
  oxideqt-codecs-extra            1.4.3-0ubuntu0.14.10.1

Ubuntu 14.04 LTS:
  liboxideqtcore0                 1.4.3-0ubuntu0.14.04.1
  oxideqt-codecs                  1.4.3-0ubuntu0.14.04.1
  oxideqt-codecs-extra            1.4.3-0ubuntu0.14.04.1

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

References:
  http://www.ubuntu.com/usn/usn-2495-1
  CVE-2015-1209, CVE-2015-1210, CVE-2015-1211, CVE-2015-1212

Package Information:
  https://launchpad.net/ubuntu/+source/oxide-qt/1.4.3-0ubuntu0.14.10.1
  https://launchpad.net/ubuntu/+source/oxide-qt/1.4.3-0ubuntu0.14.04.1