Bug 745426 (CVE-2020-15673, CVE-2020-15676, CVE-2020-15677, CVE-2020-15678)

Summary:	[Tracker] Multiple vulnerabilities in Mozilla products (CVE-2020-{15673,15676,15677,15678})
Product:	Gentoo Security	Reporter:	Sam James <sam>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:	744208, 745432
Bug Blocks:

Description Sam James archtester

2020-09-29 14:37:25 UTC

* CVE-2020-15677

Description:
"By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from."

* CVE-2020-15676

Description:
"Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element."

* CVE-2020-15678

Description:
"When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules."

* CVE-2020-15673

Description:
"Mozilla developer Jason Kratzer reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code."