CVSS2
Attack Vector
LOCAL
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:H/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
15.5%
When converting coordinates from projective to affine, the modular
inversion was not performed in constant time, resulting in a possible
timing-based side channel attack. This vulnerability affects Firefox < 80
and Firefox for Android < 80.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | firefox | < 80.0+build2-0ubuntu0.18.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | firefox | < 80.0+build2-0ubuntu0.20.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | firefox | < 80.0+build2-0ubuntu0.16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | nss | < 2:3.35-2ubuntu2.11 | UNKNOWN |
ubuntu | 20.04 | noarch | nss | < 2:3.49.1-1ubuntu1.4 | UNKNOWN |
ubuntu | 14.04 | noarch | nss | < 2:3.28.4-0ubuntu0.14.04.5+esm7 | UNKNOWN |
ubuntu | 16.04 | noarch | nss | < 2:3.28.4-0ubuntu0.16.04.13 | UNKNOWN |
developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes
launchpad.net/bugs/cve/CVE-2020-12400
nvd.nist.gov/vuln/detail/CVE-2020-12400
security-tracker.debian.org/tracker/CVE-2020-12400
ubuntu.com/security/notices/USN-4455-1
ubuntu.com/security/notices/USN-4474-1
www.cve.org/CVERecord?id=CVE-2020-12400
www.mozilla.org/en-US/security/advisories/mfsa2020-36/#CVE-2020-12400
CVSS2
Attack Vector
LOCAL
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:H/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
15.5%