CVE-2020-12395

critical

Description

Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C1624098%2C1625749%2C1626382%2C1628076%2C1631508

https://www.mozilla.org/security/advisories/mfsa2020-17/

https://www.mozilla.org/security/advisories/mfsa2020-18/

https://www.mozilla.org/security/advisories/mfsa2020-16/

https://usn.ubuntu.com/4373-1/

https://security.gentoo.org/glsa/202005-03

https://security.gentoo.org/glsa/202005-04

Details

Source: MITRE

Published: 2020-05-26

Updated: 2022-04-26

Type: CWE-787

Risk Information

CVSS v2

Base Score: 10

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

Impact Score: 10

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/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