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CVE-2021-23992

Published: Jun 24, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-347
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.5%
Top 62.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-347

Affected Products

thunderbirdmozilla
On-premDesktop App
Communications / email-server-client
ThunderbirdMozilla
On-premDesktop App
Communications / email-server-client
CentOSThe CentOS Project
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
SUSE Linux Enterprise Workstation ExtensionNovell Inc.
On-premOS
Operating Systems / linux-distro
mozillaoss-projectUSConsumer Softwareaka mozilla corp.
the centos projectoss-projectUSOperating Systemsaka centos
red hat inc.commercialUSOperating Systemsaka red hat
novell inc.commercialUSOperating Systems
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1666236
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2021-13/
mozilla.org
https://access.redhat.com/security/cve/cve-2021-23992&#13;
access.redhat.com
and 5 more references View all →

Timeline

Published
Jun 24, 2021
Last Updated
Nov 21, 2024

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