CVE-2020-12423

When the Windows DLL "webauthn.dll" was missing from the Operating System, and a malicious one was placed in a folder in the user's %PATH%, Firefox may have loaded the DLL, leading to arbitrary code execution. *Note: This issue only affects the Windows operating system; other operating systems are unaffected.* This vulnerability affects Firefox < 78.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 21%
Affected Products (NVD)
VendorProductVersion
mozillafirefox
𝑥
< 78.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
132.0.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
bionic
not-affected
eoan
not-affected
focal
not-affected
trusty
dne
xenial
not-affected
thunderbird
bionic
not-affected
eoan
not-affected
focal
not-affected
trusty
dne
xenial
not-affected
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
MozillaFirefox
suse enterprise desktop 15 SP1
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP2
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise desktop 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise sap 12 SP2
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP3
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP4
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP5
78.0.1-112.3.1
fixed
suse enterprise sap 15 SP1
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP2
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise sap 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise server 12 SP2
78.0.1-112.3.1
fixed
suse enterprise server 12 SP3
78.0.1-112.3.1
fixed
suse enterprise server 12 SP4
78.0.1-112.3.1
fixed
suse enterprise server 12 SP5
78.0.1-112.3.1
fixed
suse enterprise server 15 SP1
78.0.1-3.94.2
fixed
suse enterprise server 15 SP2
78.0.1-3.94.2
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise server 15 SP7
128.9.0-150200.152.176.1
fixed
MozillaFirefox-branding-SLE-78
suse enterprise desktop 15 SP1
4.14.1
fixed
suse enterprise desktop 15 SP2
4.14.1
fixed
suse enterprise sap 12 SP2
35.3.1
fixed
suse enterprise sap 12 SP3
35.3.1
fixed
suse enterprise sap 12 SP4
35.3.1
fixed
suse enterprise sap 12 SP5
35.3.1
fixed
suse enterprise sap 15 SP1
4.14.1
fixed
suse enterprise sap 15 SP2
4.14.1
fixed
suse enterprise server 12 SP2
35.3.1
fixed
suse enterprise server 12 SP3
35.3.1
fixed
suse enterprise server 12 SP4
35.3.1
fixed
suse enterprise server 12 SP5
35.3.1
fixed
suse enterprise server 15 SP1
4.14.1
fixed
suse enterprise server 15 SP2
4.14.1
fixed
MozillaFirefox-devel
suse enterprise desktop 15 SP1
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP2
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
102.12.0-150200.152.90.1
fixed
suse enterprise desktop 15 SP7
102.12.0-150200.152.90.1
fixed
suse enterprise sap 12 SP2
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP3
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP4
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP5
78.0.1-112.3.1
fixed
suse enterprise sap 15 SP1
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP2
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
102.12.0-150200.152.90.1
fixed
suse enterprise sap 15 SP7
102.12.0-150200.152.90.1
fixed
suse enterprise server 12 SP2
78.0.1-112.3.1
fixed
suse enterprise server 12 SP3
78.0.1-112.3.1
fixed
suse enterprise server 12 SP4
78.0.1-112.3.1
fixed
suse enterprise server 12 SP5
78.0.1-112.3.1
fixed
suse enterprise server 15 SP1
78.0.1-3.94.2
fixed
suse enterprise server 15 SP2
78.0.1-3.94.2
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
102.12.0-150200.152.90.1
fixed
suse enterprise server 15 SP7
102.12.0-150200.152.90.1
fixed
MozillaFirefox-translations-common
suse enterprise desktop 15 SP1
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP2
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise desktop 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise sap 12 SP2
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP3
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP4
78.0.1-112.3.1
fixed
suse enterprise sap 12 SP5
78.0.1-112.3.1
fixed
suse enterprise sap 15 SP1
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP2
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise sap 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise server 12 SP2
78.0.1-112.3.1
fixed
suse enterprise server 12 SP3
78.0.1-112.3.1
fixed
suse enterprise server 12 SP4
78.0.1-112.3.1
fixed
suse enterprise server 12 SP5
78.0.1-112.3.1
fixed
suse enterprise server 15 SP1
78.0.1-3.94.2
fixed
suse enterprise server 15 SP2
78.0.1-3.94.2
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise server 15 SP7
128.9.0-150200.152.176.1
fixed
MozillaFirefox-translations-other
suse enterprise desktop 15 SP1
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP2
78.0.1-3.94.2
fixed
suse enterprise desktop 15 SP3
78.10.0-8.38.1
fixed
suse enterprise desktop 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise desktop 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise desktop 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise desktop 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise sap 15 SP1
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP2
78.0.1-3.94.2
fixed
suse enterprise sap 15 SP3
78.10.0-8.38.1
fixed
suse enterprise sap 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise sap 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise sap 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise sap 15 SP7
128.9.0-150200.152.176.1
fixed
suse enterprise server 15 SP1
78.0.1-3.94.2
fixed
suse enterprise server 15 SP2
78.0.1-3.94.2
fixed
suse enterprise server 15 SP3
78.10.0-8.38.1
fixed
suse enterprise server 15 SP4
91.8.0-150200.152.26.1
fixed
suse enterprise server 15 SP5
102.11.0-150200.152.87.1
fixed
suse enterprise server 15 SP6
115.10.0-150200.152.134.1
fixed
suse enterprise server 15 SP7
128.9.0-150200.152.176.1
fixed
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
https://bugzilla.mozilla.org/show_bug.cgi?id=1642400
https://www.mozilla.org/security/advisories/mfsa2020-24/
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
https://bugzilla.mozilla.org/show_bug.cgi?id=1642400
https://www.mozilla.org/security/advisories/mfsa2020-24/