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USN-2920-1: Oxide vulnerabilities

10 March 2016

Several security issues were fixed in Oxide.

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Releases

Packages

  • 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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 15.10
Ubuntu 14.04

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