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CVE-2020-12402

Published: Jul 9, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-203
4.4MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 73.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes. *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected, but products built on top of it might. This vulnerability affects Firefox < 78.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:RS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-203

Affected Products

Mozilla Corp.
oss-project·USaka Mozilla
Network Security Services
Consumer Software
FirefoxOn-premDesktop App
Consumer Software / browser
Red Hat Inc.
commercial·USaka red hat
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
Canonical Ltd.
commercial·GBaka canonical
UbuntuOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Novell Inc.
commercial·US
OpenSUSE LeapOn-premOS
Operating Systems / linux-distro
and 8 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-12402?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Discovery
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References

https://nvd.nist.gov/vuln/detail/CVE-2020-12402&#13;
nvd.nist.gov
https://security-tracker.debian.org/tracker/CVE-2020-12402&#13;
security-tracker.debian.org
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html&#13;
lists.debian.org
and 26 more references View all →

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