CVE-2019-9814

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 66. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 67.

References

https://www.mozilla.org/security/advisories/mfsa2019-13/

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1527592%2C1534536%2C1520132%2C1543159%2C1539393%2C1459932%2C1459182%2C1516425

Details

Source: MITRE

Published: 2019-07-23

Updated: 2021-07-21

Type: CWE-119

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Tenable Plugins

View all (7 total)

IDNameProductFamilySeverity
125948Ubuntu 16.04 LTS / 18.04 LTS / 18.10 / 19.04 : Firefox regression (USN-3991-3)NessusUbuntu Local Security Checks
critical
125766Ubuntu 16.04 LTS / 18.04 LTS / 18.10 / 19.04 : firefox regression (USN-3991-2)NessusUbuntu Local Security Checks
critical
125361Mozilla Firefox < 67.0NessusWindows
critical
125360Mozilla Firefox < 67.0NessusMacOS X Local Security Checks
critical
125346FreeBSD : mozilla -- multiple vulnerabilities (44b6dfbf-4ef7-4d52-ad52-2b1b05d81272)NessusFreeBSD Local Security Checks
critical
125339Ubuntu 16.04 LTS / 18.04 LTS / 18.10 / 19.04 : Firefox vulnerabilities (USN-3991-1)NessusUbuntu Local Security Checks
critical
700727Mozilla Firefox < 67.0 Multiple VulnerabilitiesNessus Network MonitorWeb Clients
high