U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-9815 Detail

Description

If hyperthreading is not disabled, a timing attack vulnerability exists, similar to previous Spectre attacks. Apple has shipped macOS 10.14.5 with an option to disable hyperthreading in applications running untrusted code in a thread through a new sysctl. Firefox now makes use of it on the main thread and any worker threads. *Note: users need to update to macOS 10.14.5 in order to take advantage of this change.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  8.1 HIGH
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1546544 Permissions Required  Third Party Advisory 
https://bugzilla.mozilla.org/show_bug.cgi?id=1546544 Permissions Required  Third Party Advisory 
https://mdsattacks.com/ Third Party Advisory 
https://mdsattacks.com/ Third Party Advisory 
https://www.mozilla.org/security/advisories/mfsa2019-13/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2019-13/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2019-14/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2019-14/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2019-15/ Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2019-15/ Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-203 Observable Discrepancy cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
67.0
 cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
60.7
 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
60.7
Running on/with
 cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9815
NVD Published Date:
07/23/2019
NVD Last Modified:
11/20/2024
Source:
Mozilla Corporation