CVE-2019-9805

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

A latent vulnerability exists in the Prio library where data may be read from uninitialized memory for some functions, leading to potential memory corruption. This vulnerability affects Firefox < 66.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1521360

https://www.mozilla.org/security/advisories/mfsa2019-07/

Details

Source: MITRE

Published: 2019-04-26

Updated: 2020-08-24

Type: CWE-908

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 (8 total)

IDNameProductFamilySeverity
124114Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : Firefox regressions (USN-3918-4)NessusUbuntu Local Security Checks
critical
700487Mozilla Firefox < 66.0 Multiple VulnerabilitiesNessus Network MonitorWeb Clients
critical
123502Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : Firefox regression (USN-3918-3)NessusUbuntu Local Security Checks
critical
123127Ubuntu 14.04 LTS : Firefox vulnerabilities (USN-3918-2)NessusUbuntu Local Security Checks
critical
123078Ubuntu 16.04 LTS / 18.04 LTS / 18.10 : Firefox vulnerabilities (USN-3918-1)NessusUbuntu Local Security Checks
critical
122959FreeBSD : mozilla -- multiple vulnerabilities (05da6b56-3e66-4306-9ea3-89fafe939726)NessusFreeBSD Local Security Checks
critical
122948Mozilla Firefox < 66.0NessusWindows
critical
122947Mozilla Firefox < 66.0NessusMacOS X Local Security Checks
critical