CVE-2019-11730

CVE Details

Release Date:

2019-07-10

Description

A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. It was demonstrated that in combination with a popular Android messaging app, if a malicious HTML attachment is sent to a user and they opened that attachment in Firefox, due to that app's predictable pattern for locally-saved file names, it is possible to read attachments the victim received from other correspondents. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

See more information about CVE-2019-11730 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	6.1	Base Metrics:	AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	Required
Scope:	Changed	Confidentiality Impact:	Low
Integrity Impact:	Low	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (firefox)	ELSA-2019-1765	2019-07-11
Oracle Linux version 6 (thunderbird)	ELSA-2019-1777	2019-07-24
Oracle Linux version 7 (firefox)	ELSA-2019-1763	2019-07-11
Oracle Linux version 7 (thunderbird)	ELSA-2019-1775	2019-07-15
Oracle Linux version 8 (firefox)	ELSA-2019-1764	2019-07-30
Oracle Linux version 8 (thunderbird)	ELSA-2019-1799	2019-07-30

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team