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AUSCERT Security Bulletin
Firefox ESR 60.4 released
12 December 2018
AusCERT Security Bulletin Summary
Product: Mozilla Firefox ESR
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
CVE Names: CVE-2018-18498 CVE-2018-18494 CVE-2018-18493
CVE-2018-18492 CVE-2018-17466 CVE-2018-12405
Member content until: Friday, January 11 2019
Mozilla have released Firefox Extended Support Release 60.4
with multiple security fixes. 
Mozilla advises that the following vulnerabilities have been addressed:
"# CVE-2018-17466: Buffer overflow and out-of-bounds read in ANGLE library with
A buffer overflow and out-of-bounds read can occur in TextureStorage11 within
the ANGLE graphics library, used for WebGL content. This results in a
potentially exploitable crash.
# CVE-2018-18492: Use-after-free with select element
A use-after-free vulnerability can occur after deleting a selection element due
to a weak reference to the select element in the options collection. This
results in a potentially exploitable crash.
# CVE-2018-18493: Buffer overflow in accelerated 2D canvas with Skia
Reporter: Atte Kettunen
A buffer overflow can occur in the Skia library during buffer offset
calculations with hardware accelerated canvas 2D actions due to the use of
32-bit calculations instead of 64-bit. This results in a potentially
# CVE-2018-18494: Same-origin policy violation using location attribute and
performance.getEntries to steal cross-origin URLs
Reporter: James Lee of Kryptos Logic
A same-origin policy violation allowing the theft of cross-origin URL entries
site using performance.getEntries(). This is a same-origin policy violation and
could allow for data theft.
# CVE-2018-18498: Integer overflow when calculating buffer sizes for images
A potential vulnerability leading to an integer overflow can occur during
buffer size calculations for images when a raw value is used instead of the
checked value. This leads to a possible out-of-bounds write.
# CVE-2018-12405: Memory safety bugs fixed in Firefox 64 and Firefox ESR 60.4
Reporter: Mozilla developers and community
Mozilla developers and community members Christian Holler, Diego Calleja,
Andrew McCreight, Jon Coppeard, Natalia Csoregi, Nicolas B. Pierron, and Tyson
Smith reported memory safety bugs present in Firefox 63 and Firefox ESR 60.3.
Some of these bugs showed evidence of memory corruption and we presume that
with enough effort that some of these could be exploited to run arbitrary code."
Mozilla advises updating Firefox Extended Support Release
to version 60.4 to address these vulnerabilities. 
 Mozilla Foundation Security Advisory 2018-30
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