9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.6 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.01 Low
EPSS
Percentile
83.5%
Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 < 78.4, Firefox < 82, and Thunderbird < 78.4.
CPE | Name | Operator | Version |
---|---|---|---|
debian_linux | eq | 9.0 | |
debian_linux | eq | 10.0 | |
firefox | lt | 82.0 | |
firefox_esr | lt | 78.4 | |
thunderbird | lt | 78.4 | |
leap | eq | 15.1 | |
leap | eq | 15.2 |
lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.html
lists.opensuse.org/opensuse-security-announce/2020-10/msg00062.html
lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html
lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html
bugzilla.mozilla.org/buglist.cgi?bug_id=1576843%2C1656987%2C1660954%2C1662760%2C1663439%2C1666140
lists.debian.org/debian-lts-announce/2020/10/msg00027.html
security.gentoo.org/glsa/202010-08
www.debian.org/security/2020/dsa-4780
www.mozilla.org/security/advisories/mfsa2020-45/
www.mozilla.org/security/advisories/mfsa2020-46/
www.mozilla.org/security/advisories/mfsa2020-47/
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.6 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.01 Low
EPSS
Percentile
83.5%