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Ubuntu Security Notice USN-3175-1

Ubuntu Security Notice USN-3175-1
Posted Jan 30, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3175-1 - Multiple memory safety issues were discovered in Firefox. 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 application crash, or execute arbitrary code. JIT code allocation can allow a bypass of ASLR protections in some circumstances. 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
systems | linux, ubuntu
advisories | CVE-2017-5373, CVE-2017-5374, CVE-2017-5375, CVE-2017-5376, CVE-2017-5377, CVE-2017-5378, CVE-2017-5379, CVE-2017-5380, CVE-2017-5381, CVE-2017-5382, CVE-2017-5383, CVE-2017-5384, CVE-2017-5385, CVE-2017-5386, CVE-2017-5387, CVE-2017-5388, CVE-2017-5389, CVE-2017-5390, CVE-2017-5391, CVE-2017-5393, CVE-2017-5396
MD5 | 02713fe89d101143e3c6116346bd6f48

Ubuntu Security Notice USN-3175-1

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3175-1
January 27, 2017

firefox vulnerabilities
===========================================================================

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

- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Firefox could be made to crash or run programs as your login if it
opened a malicious website.

Software Description:
- firefox: Mozilla Open Source web browser

Details:

Multiple memory safety issues were discovered in Firefox. 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 application
crash, or execute arbitrary code. (CVE-2017-5373, CVE-2017-5374)

JIT code allocation can allow a bypass of ASLR protections in some
circumstances. 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-2017-5375)

Nicolas Gr=C3=A9goire discovered a use-after-free when manipulating XSL in
XSLT documents in some circumstances. 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-2017-5376)

Atte Kettunen discovered a memory corruption issue in Skia in some
circumstances. 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-2017-5377)

Jann Horn discovered that an object's address could be discovered through
hashed codes of JavaScript objects shared between pages. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit this to obtain sensitive information. (CVE-2017-5378)

A use-after-free was discovered in Web Animations in some circumstances.
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-2017-5379)

A use-after-free was discovered during DOM manipulation of SVG content in
some circumstances. 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-2017-5380)

Jann Horn discovered that the "export" function in the Certificate Viewer
can force local filesystem navigation when the Common Name contains
slashes. If a user were tricked in to exporting a specially crafted
certificate, an attacker could potentially exploit this to save content
with arbitrary filenames in unsafe locations. (CVE-2017-5381)

Jerri Rice discovered that the Feed preview for RSS feeds can be used to
capture errors and exceptions generated by privileged content. An attacker
could potentially exploit this to obtain sensitive information.
(CVE-2017-5382)

Armin Razmjou discovered that certain unicode glyphs do not trigger
punycode display. An attacker could potentially exploit this to spoof the
URL bar contents. (CVE-2017-5383)

Paul Stone and Alex Chapman discovered that the full URL path is exposed
to JavaScript functions specified by Proxy Auto-Config (PAC) files. If a
user has enabled Web Proxy Auto Detect (WPAD), an attacker could
potentially exploit this to obtain sensitive information. (CVE-2017-5384)

Muneaki Nishimura discovered that data sent in multipart channels will
ignore the Referrer-Policy response headers. An attacker could potentially
exploit this to obtain sensitive information. (CVE-2017-5385)

Muneaki Nishimura discovered that WebExtensions can affect other
extensions using the data: protocol. If a user were tricked in to
installing a specially crafted addon, an attacker could potentially
exploit this to obtain sensitive information or gain additional
privileges. (CVE-2017-5386)

Mustafa Hasan discovered that the existence of local files can be
determined using the <track> element. An attacker could potentially
exploit this to obtain sensitive information. (CVE-2017-5387)

Cullen Jennings discovered that WebRTC can be used to generate large
amounts of UDP traffic. An attacker could potentially exploit this to
conduct Distributed Denial-of-Service (DDOS) attacks. (CVE-2017-5388)

Kris Maglione discovered that WebExtensions can use the mozAddonManager
API by modifying the CSP headers on sites with the appropriate permissions
and then using host requests to redirect script loads to a malicious site.
If a user were tricked in to installing a specially crafted addon, an
attacker could potentially exploit this to install additional addons
without user permission. (CVE-2017-5389)

Jerri Rice discovered insecure communication methods in the Dev Tools JSON
Viewer. An attacker could potentially exploit this to gain additional
privileges. (CVE-2017-5390)

Jerri Rice discovered that about: pages used by content can load
privileged about: pages in iframes. An attacker could potentially exploit
this to gain additional privileges, in combination with a
content-injection bug in one of those about: pages. (CVE-2017-5391)

Stuart Colville discovered that mozAddonManager allows for the
installation of extensions from the CDN for addons.mozilla.org, a publicly
accessible site. If a user were tricked in to installing a specially
crafted addon, an attacker could potentially exploit this, in combination
with a cross-site scripting (XSS) attack on Mozilla's AMO sites, to
install additional addons. (CVE-2017-5393)

Filipe Gomes discovered a use-after-free in the media decoder in some
circumstances. 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-2017-5396)

Update instructions:

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

Ubuntu 16.10:
firefox 51.0.1+build2-0ubuntu0.16.10.1

Ubuntu 16.04 LTS:
firefox 51.0.1+build2-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
firefox 51.0.1+build2-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
firefox 51.0.1+build2-0ubuntu0.12.04.1

After a standard system update you need to restart Firefox to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-3175-1
CVE-2017-5373, CVE-2017-5374, CVE-2017-5375, CVE-2017-5376,
CVE-2017-5377, CVE-2017-5378, CVE-2017-5379, CVE-2017-5380,
CVE-2017-5381, CVE-2017-5382, CVE-2017-5383, CVE-2017-5384,
CVE-2017-5385, CVE-2017-5386, CVE-2017-5387, CVE-2017-5388,
CVE-2017-5389, CVE-2017-5390, CVE-2017-5391, CVE-2017-5393,
CVE-2017-5396

Package Information:
https://launchpad.net/ubuntu/+source/firefox/51.0.1+build2-0ubuntu0.16.10.1
https://launchpad.net/ubuntu/+source/firefox/51.0.1+build2-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/firefox/51.0.1+build2-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/51.0.1+build2-0ubuntu0.12.04.1



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