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==========================================================================
Ubuntu Security Notice USN-2920-1
March 10, 2016
oxide-qt vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- 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:
It was discovered that the ContainerNode::parserRemoveChild function in
Blink mishandled widget updates 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-2016-1630)
It was discovered that the PPB_Flash_MessageLoop_Impl::InternalRun
function in Chromium mishandled nested message loops. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit this to bypass same-origin restrictions.
(CVE-2016-1631)
Multiple use-after-frees were discovered in Blink. If a user were tricked
in to opening a specially crafted website, an attacker could potentially
exploit these to cause a denial of service via renderer crash or execute
arbitrary code with the privileges of the sandboxed render process.
(CVE-2016-1633, CVE-2016-1634, CVE-2016-1644)
It was discovered that the PendingScript::notifyFinished function in
Blink relied on memory-cache information about integrity-check occurrences
instead of integrity-check successes. If a user were tricked in to opening
a specially crafted website, an attacker could potentially exploit this to
bypass Subresource Integrity (SRI) protections. (CVE-2016-1636)
It was discovered that the SkATan2_255 function in Skia mishandled
arctangent calculations. If a user were tricked in to opening a specially
crafted website, an attacker could potentially exploit this to obtain
sensitive information. (CVE-2016-1637)
A use-after-free was discovered in Chromium. 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 with the privileges of the user invoking the program.
(CVE-2016-1641)
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-2016-1642)
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 renderer crash or execute
arbitrary code with the privileges of the sandboxed render process.
(CVE-2016-1643)
Multiple security issues were discovered in V8. 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
renderer crash or execute arbitrary code with the privileges of the
sandboxed render process. (CVE-2016-2843)
An invalid cast 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 with the privileges of the sandboxed render process. (CVE-2016-2844)
It was discovered that the Content Security Policy (CSP) implementation in
Blink did not ignore a URL's path component in the case of a ServiceWorker
fetch. If a user were tricked in to opening a specially crafted website,
an attacker could potentially exploit this to obtain sensitive
information. (CVE-2016-2845)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.10:
liboxideqtcore0 1.13.6-0ubuntu0.15.10.1
Ubuntu 14.04 LTS:
liboxideqtcore0 1.13.6-0ubuntu0.14.04.1
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2920-1
CVE-2016-1630, CVE-2016-1631, CVE-2016-1633, CVE-2016-1634,
CVE-2016-1636, CVE-2016-1637, CVE-2016-1641, CVE-2016-1642,
CVE-2016-1643, CVE-2016-1644, CVE-2016-2843, CVE-2016-2844,
CVE-2016-2845
Package Information:
https://launchpad.net/ubuntu/+source/oxide-qt/1.13.6-0ubuntu0.15.10.1
https://launchpad.net/ubuntu/+source/oxide-qt/1.13.6-0ubuntu0.14.04.1
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