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CVE-2020-12403

Published: May 27, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-125
9.1CRITICAL
NVD MITRE
EPSS Score
1.5%
Top 28.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-125

Affected Products

mozilla
oss-project·USaka mozilla corp.
nss
Consumer Software
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
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References

https://bugzilla.redhat.com/show_bug.cgi?id=1868931
bugzilla.redhat.com
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes
developer.mozilla.org
https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html
lists.debian.org
and 1 more references View all →
News mentions
Could not load news mentions.

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