FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

mozilla -- multiple vulnerabilities

Affected packages
firefox < 62.0.3,1
waterfox < 56.2.4
linux-seamonkey < 2.53.0
seamonkey < 2.53.0
firefox-esr < 60.2.2,1
linux-firefox < 60.2.2,2
libxul < 60.2.2
linux-thunderbird < 60.2.2
thunderbird < 60.2.2


VuXML ID c4f39920-781f-4aeb-b6af-17ed566c4272
Discovery 2018-10-02
Entry 2018-10-02
Modified 2019-07-23

Mozilla Foundation reports:

CVE-2018-12386: Type confusion in JavaScript

A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered.


A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process.


CVE Name CVE-2018-12386
CVE Name CVE-2018-12387