=========================================================================Ubuntu Security Notice USN-3044-1
August 05, 2016
firefox vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- 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:
Gustavo Grieco discovered an out-of-bounds read during XML parsing 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 obtain sensitive information.
(CVE-2016-0718)
Toni Huttunen discovered that once a favicon is requested from a site,
the remote server can keep the network connection open even after the page
is closed. A remote attacked could potentially exploit this to track
users, resulting in information disclosure. (CVE-2016-2830)
Christian Holler, Tyson Smith, Boris Zbarsky, Byron Campen, Julian Seward,
Carsten Book, Gary Kwong, Jesse Ruderman, Andrew McCreight, and Phil
Ringnalda discovered multiple memory safety issues 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-2016-2835, CVE-2016-2836)
A buffer overflow was discovered in the ClearKey Content Decryption
Module (CDM) during video playback. 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 plugin process crash, or, in combination
with another vulnerability to escape the GMP sandbox, execute arbitrary
code. (CVE-2016-2837)
Atte Kettunen discovered a buffer overflow when rendering 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-2016-2838)
Bert Massop discovered a crash in Cairo with version 0.10 of FFmpeg. If a
user were tricked in to opening a specially crafted website, an attacker
could potentially exploit this to execute arbitrary code. (CVE-2016-2839)
Catalin Dumitru discovered that URLs of resources loaded after a
navigation start could be leaked to the following page via the Resource
Timing API. An attacker could potentially exploit this to obtain sensitive
information. (CVE-2016-5250)
Firas Salem discovered an issue with non-ASCII and emoji characters in
data: URLs. An attacker could potentially exploit this to spoof the
addressbar contents. (CVE-2016-5251)
Georg Koppen discovered a stack buffer underflow during 2D graphics
rendering 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-2016-5252)
Abhishek Arya discovered a use-after-free when the alt key is used with
top-level menus. 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-2016-5254)
Jukka Jylänki discovered a crash during garbage collection. If a user
were tricked in to opening a specially crafted website, an attacker could
potentially exploit this to execute arbitrary code. (CVE-2016-5255)
Looben Yang discovered a use-after-free in WebRTC. 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-2016-5258)
Looben Yang discovered a use-after-free when working with nested sync
events in service workers. 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-2016-5259)
Mike Kaply discovered that plain-text passwords can be stored in session
restore if an input field type is changed from "password" to "text" during
a session, leading to information disclosure. (CVE-2016-5260)
Samuel Groß discovered an integer overflow in WebSockets during data
buffering 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-2016-5261)
Nikita Arykov discovered that JavaScript event handlers on a
