CVE-2020-6814: Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.9% · higher than 79% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

FI

Firefox · Mozilla

before 74.0 · source: NVD

FE

Firefox Esr · Mozilla

before 68.6.0 · source: NVD

TH

Thunderbird · Mozilla

before 68.6.0 · source: NVD

UL

Ubuntu Linux · Canonical

16.04; 18.04; 19.10 · source: NVD