Home / mailings [USN-2917-3] Firefox regressions
Posted on 19 April 2016
Ubuntu Security==========================
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Ubuntu Security Notice USN-2917-3
April 19, 2016
firefox regressions
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary:
USN-2917-1 introduced several regressions in Firefox.
Software Description:
- firefox: Mozilla Open Source web browser
Details:
USN-2917-1 fixed vulnerabilities in Firefox. This update caused several
web compatibility regressions.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NS=
S.
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 Firefox. (CVE-2016-1950)
=20
Bob Clary, Christoph Diehl, Christian Holler, Andrew McCreight, Daniel
Holbert, Jesse Ruderman, Randell Jesup, Carsten Book, Gian-Carlo Pascutt=
o,
Tyson Smith, Andrea Marchesini, and Jukka Jyl=C3=A4nki discovered multip=
le
memory safety issues in Firefox. If a user were tricked in to opening a
specially crafted website, an attacker could potentially exploit these t=
o
cause a denial of service via application crash, or execute arbitrary co=
de
with the privileges of the user invoking Firefox. (CVE-2016-1952,
CVE-2016-1953)
=20
Nicolas Golubovic discovered that CSP violation reports can be used to
overwrite local files. If a user were tricked in to opening a specially
crafted website with addon signing disabled and unpacked addons installe=
d,
an attacker could potentially exploit this to gain additional privileges=
=2E
(CVE-2016-1954)
=20
Muneaki Nishimura discovered that CSP violation reports contained full
paths for cross-origin iframe navigations. An attacker could potentially=
exploit this to steal confidential data. (CVE-2016-1955)
=20
Ucha Gobejishvili discovered that performing certain WebGL operations
resulted in memory resource exhaustion with some Intel GPUs, requiring
a reboot. If a user were tricked in to opening a specially crafted
website, an attacker could potentially exploit this to cause a denial
of service. (CVE-2016-1956)
=20
Jose Martinez and Romina Santillan discovered a memory leak in
libstagefright during MPEG4 video file processing 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=
memory exhaustion. (CVE-2016-1957)
=20
Abdulrahman Alqabandi discovered that the addressbar could be blank or
filled with page defined content in some circumstances. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit this to conduct URL spoofing attacks. (CVE-2016-1958=
)
=20
Looben Yang discovered an out-of-bounds read in Service Worker Manager. =
If
a user were tricked in to opening a specially crafted website, an attack=
er
could potentially exploit this to cause a denial of service via
application crash, or execute arbitrary code with the privileges of the
user invoking Firefox. (CVE-2016-1959)
=20
A use-after-free was discovered in the HTML5 string parser. If a user we=
re
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 invokin=
g
Firefox. (CVE-2016-1960)
=20
A use-after-free was discovered in the SetBody function of HTMLDocument.=
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 Firefox. (CVE-2016-1961)
=20
Dominique Haza=C3=ABl-Massieux discovered a use-after-free when using mu=
ltiple
WebRTC data channels. 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 Firefox. (CVE-2016-1962)
=20
It was discovered that Firefox crashes when local files are modified
whilst being read by the FileReader API. If a user were tricked in to
opening a specially crafted website, an attacker could potentially explo=
it
this to execute arbitrary code with the privileges of the user invoking
Firefox. (CVE-2016-1963)
=20
Nicolas Gr=C3=A9goire discovered a use-after-free during XML transformat=
ions.
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 Firefox. (CVE-2016-1964)
=20
Tsubasa Iinuma discovered a mechanism to cause the addressbar to display=
an incorrect URL, using history navigations and the Location protocol
property. If a user were tricked in to opening a specially crafted
website, an attacker could potentially exploit this to conduct URL
spoofing attacks. (CVE-2016-1965)
=20
A memory corruption issues was discovered in the NPAPI subsystem. If
a user were tricked in to opening a specially crafted website with a
malicious plugin installed, 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 Firefox. (CVE-2016-1966)
=20
Jordi Chancel discovered a same-origin-policy bypass when using
performance.getEntries and history navigation with session restore. If
a user were tricked in to opening a specially crafted website, an attack=
er
could potentially exploit this to steal confidential data. (CVE-2016-196=
7)
=20
Luke Li discovered a buffer overflow during Brotli decompression 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 with the
privileges of the user invoking Firefox. (CVE-2016-1968)
=20
Ronald Crane discovered a use-after-free in GetStaticInstance 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 with the privileges of the
user invoking Firefox. (CVE-2016-1973)
=20
Ronald Crane discovered an out-of-bounds read following a failed
allocation in the HTML parser 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 with the privileges of the user invokin=
g
Firefox. (CVE-2016-1974)
=20
Holger Fuhrmannek, Tyson Smith and Holger Fuhrmannek reported multiple
memory safety issues in the Graphite 2 library. If a user were tricked i=
n
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 with the privileges of the user invoking Firefox.=
(CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792,
CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-279=
7,
CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-280=
2)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.10:
firefox 45.0.2+build1-0ubuntu0.15.10.1
Ubuntu 14.04 LTS:
firefox 45.0.2+build1-0ubuntu0.14.04.1
Ubuntu 12.04 LTS:
firefox 45.0.2+build1-0ubuntu0.12.04.1
After a standard system update you need to restart Firefox to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2917-3
http://www.ubuntu.com/usn/usn-2917-1
https://launchpad.net/bugs/1572169
Package Information:
https://launchpad.net/ubuntu/+source/firefox/45.0.2+build1-0ubuntu0.15.=
10.1
https://launchpad.net/ubuntu/+source/firefox/45.0.2+build1-0ubuntu0.14.=
04.1
https://launchpad.net/ubuntu/+source/firefox/45.0.2+build1-0ubuntu0.12.=
04.1
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