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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox HTML Sanitization Flaws in Chrome Privileged Documents May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1040308
SecurityTracker URL:  http://securitytracker.com/id/1040308
CVE Reference:   CVE-2018-5124   (Links to External Site)
Date:  Jan 30 2018
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Mozilla Firefox. A remote user can cause arbitrary code to be executed on the target user's system.

The browser does not properly sanitize HTML fragments in chrome-privileged documents. A remote user may be able to create specially crafted content that, when loaded by the target user, will execute arbitrary code on the target user's system.

Johann Hofmann reported this vulnerability.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (58.0.1).

The vendor advisory is available at:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-05/

Vendor URL:  www.mozilla.org/en-US/security/advisories/mfsa2018-05/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 1 2018 (Ubuntu Issues Fix) Mozilla Firefox HTML Sanitization Flaws in Chrome Privileged Documents May Let Remote Users Execute Arbitrary Code
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS, 16.04 LTS, and 17.10.



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