| Description: | Summary:
The remote host is missing an update for the 'firefox' package(s) announced via the USN-2656-1 advisory.
Vulnerability Insight:
Karthikeyan Bhargavan discovered that NSS incorrectly handled state
transitions for the TLS state machine. If a remote attacker were able to
perform a machine-in-the-middle attack, this flaw could be exploited to skip
the ServerKeyExchange message and remove the forward-secrecy property.
(CVE-2015-2721)
Looben Yan discovered 2 use-after-free issues when using XMLHttpRequest in
some circumstances. 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 with
the privileges of the user invoking Firefox. (CVE-2015-2722,
CVE-2015-2733)
Bob Clary, Christian Holler, Bobby Holley, Andrew McCreight, Terrence
Cole, Steve Fink, Mats Palmgren, Wes Kocher, Andreas Pehrson, Tooru
Fujisawa, Andrew Sutherland, and Gary Kwong 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 with
the privileges of the user invoking Firefox. (CVE-2015-2724,
CVE-2015-2725, CVE-2015-2726)
Armin Razmdjou discovered that opening hyperlinks with specific mouse
and key combinations could allow a Chrome privileged URL to be opened
without context restrictions being preserved. If a user were tricked in to
opening a specially crafted website, an attacker could potentially exploit
this to bypass security restrictions. (CVE-2015-2727)
Paul Bandha discovered a type confusion bug in the Indexed DB Manager. 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-2015-2728)
Holger Fuhrmannek discovered an out-of-bounds read in Web Audio. If a
user were tricked in to opening a specially crafted website, an attacker
could potentially exploit this to obtain sensitive information.
(CVE-2015-2729)
Watson Ladd discovered that NSS incorrectly handled Elliptical Curve
Cryptography (ECC) multiplication. A remote attacker could possibly use
this issue to spoof ECDSA signatures. (CVE-2015-2730)
A use-after-free was discovered when a Content Policy modifies the DOM to
remove a DOM object. 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-2015-2731)
Ronald Crane discovered multiple security vulnerabilities. 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 with the privileges of the user ... [Please see the references for more information on the vulnerabilities]
Affected Software/OS:
'firefox' package(s) on Ubuntu 14.04, Ubuntu 14.10, Ubuntu 15.04.
Solution:
Please install the updated package(s).
CVSS Score:
10.0
CVSS Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C
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