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AUSCERT Security Bulletin
ASB-2015.0025
A number of vulnerabilities have been identified in Mozilla
Firefox, Firefox ESR, and Seamonkey
23 March 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: Mozilla Firefox
Mozilla Firefox ESR
Mozilla SeaMonkey
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-0818 CVE-2015-0817
Member content until: Wednesday, April 22 2015
OVERVIEW
A number of vulnerabilities have been identified in Mozilla Firefox,
Firefox ESR, and Seamonkey prior to Firefox 36.0.3, Firefox ESR 31.5.2,
and SeaMonkey 2.33.1. [1, 2]
IMPACT
The vendor has provided the following details regarding these
issues:
CVE-2015-0818: "Security researcher Mariusz Mlynski reported,
through HP Zero Day Initiative's Pwn2Own contest, a method to run
arbitrary scripts in a privileged context. This bypassed the
same-origin policy protections by using a flaw in the processing of
SVG format content navigation." [1]
CVE-2015-0817: "Security researcher ilxu1a reported, through HP Zero
Day Initiative's Pwn2Own contest, a flaw in Mozilla's implementation
of typed array bounds checking in JavaScript just-in-time
compilation (JIT) and its management of bounds checking for heap
access. This flaw can be leveraged into the reading and writing of
memory allowing for arbitary code execution on the local system."
[2]
MITIGATION
The vendor recommends updating to the latest version of Firefox,
Firefox ESR, or SeaMonkey to correct these issues. [1, 2]
REFERENCES
[1] Privilege escalation through SVG navigation
https://www.mozilla.org/en-US/security/advisories/mfsa2015-28/
[2] Code execution through incorrect JavaScript bounds checking
elimination
https://www.mozilla.org/en-US/security/advisories/mfsa2015-29/
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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