CVE-2020-6814

HIGH

Description

Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. 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 Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256%2C1612636%2C1614339

https://usn.ubuntu.com/4328-1/

https://usn.ubuntu.com/4335-1/

https://www.mozilla.org/security/advisories/mfsa2020-08/

https://www.mozilla.org/security/advisories/mfsa2020-09/

https://www.mozilla.org/security/advisories/mfsa2020-10/

Details

Source: MITRE

Published: 2020-03-25

Updated: 2020-04-22

Type: CWE-119

Risk Information

CVSS v2.0

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 v3.0

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