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Ubuntu Security Notice USN-3058-1

Ubuntu Security Notice USN-3058-1
Posted Sep 15, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3058-1 - An issue was discovered in Blink involving the provisional URL for an initially empty document. An attacker could potentially exploit this to spoof the currently displayed URL. A use-after-free was discovered in the WebCrypto 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 application crash, or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, spoof
systems | linux, ubuntu
advisories | CVE-2016-5141, CVE-2016-5142, CVE-2016-5143, CVE-2016-5144, CVE-2016-5145, CVE-2016-5146, CVE-2016-5147, CVE-2016-5148, CVE-2016-5150, CVE-2016-5153, CVE-2016-5155, CVE-2016-5156, CVE-2016-5161, CVE-2016-5164, CVE-2016-5165, CVE-2016-5167
SHA-256 | 1a6d9dccdc1ad228648a7fe517941aaa2262f710c49018ca68a1528a45e0054e

Ubuntu Security Notice USN-3058-1

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3058-1
September 14, 2016

oxide-qt vulnerabilities
===========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS
- 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 issue was discovered in Blink involving the provisional URL for an
initially empty document. An attacker could potentially exploit this to
spoof the currently displayed URL. (CVE-2016-5141)

A use-after-free was discovered in the WebCrypto 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
application crash, or execute arbitrary code. (CVE-2016-5142)

It was discovered that the devtools subsystem in Blink mishandles various
parameters. An attacker could exploit this to bypass intended access
restrictions. (CVE-2016-5143, CVE-2016-5144)

It was discovered that Blink does not ensure that a taint property is
preserved after a structure-clone operation on an ImageBitmap object
derived from a cross-origin image. If a user were tricked in to opening a
specially crafted website, an attacker could potentially exploit this to
bypass same origin restrictions. (CVE-2016-5145)

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-2016-5146, CVE-2016-5167)

It was discovered that Blink mishandles deferred page loads. If a user
were tricked in to opening a specially crafted website, an attacker could
potentially exploit this to conduct cross-site scripting (XSS) attacks.
(CVE-2016-5147)

An issue was discovered in Blink related to widget updates. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit this to conduct cross-site scripting (XSS) attacks.
(CVE-2016-5148)

A use-after-free 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 application crash, or execute
arbitrary code. (CVE-2016-5150)

A use-after-free 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 application crash, or execute
arbitrary code. (CVE-2016-5153)

It was discovered that Chromium does not correctly validate access to the
initial document. An attacker could potentially exploit this to spoof the
currently displayed URL. (CVE-2016-5155)

A use-after-free was discovered in the event 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 application
crash, or execute arbitrary code. (CVE-2016-5156)

A type confusion bug 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 application crash, or execute
arbitrary code. (CVE-2016-5161)

An issue was discovered with the devtools implementation. An attacker
could potentially exploit this to conduct cross-site scripting (XSS)
attacks. (CVE-2016-5164)

An issue was discovered with the devtools implementation. An attacker
could potentially exploit this to conduct cross-site scripting (XSS)
attacks. (CVE-2016-5165)

Update instructions:

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

Ubuntu 16.04 LTS:
liboxideqtcore0 1.17.7-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
liboxideqtcore0 1.17.7-0ubuntu0.14.04.1

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

References:
http://www.ubuntu.com/usn/usn-3058-1
CVE-2016-5141, CVE-2016-5142, CVE-2016-5143, CVE-2016-5144,
CVE-2016-5145, CVE-2016-5146, CVE-2016-5147, CVE-2016-5148,
CVE-2016-5150, CVE-2016-5153, CVE-2016-5155, CVE-2016-5156,
CVE-2016-5161, CVE-2016-5164, CVE-2016-5165, CVE-2016-5167

Package Information:
https://launchpad.net/ubuntu/+source/oxide-qt/1.17.7-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/oxide-qt/1.17.7-0ubuntu0.14.04.1



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