What is CVE-2021-3567?

CVE-2021-3567 is a high-severity vulnerability in Gnome Caribou, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-03-25.

How severe is CVE-2021-3567?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-3567 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Gnome Caribou

CVE-2021-3567

A flaw was found in Caribou due to a regression of CVE-2020-25712 fix. An attacker could use this flaw to bypass screen-locking applications that leverage Caribou as an input mechanism. The highest threat from this vulnerability is to system availability.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.011 (63.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Gnome Caribou
N/a Caribou — versions caribou 0.4.21

Weakness classification (CWE)

Public proof-of-concept exploits

CyberSecAI/cve_

References

secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-3567?: CVE-2021-3567 is a high-severity vulnerability in Gnome Caribou, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-03-25.
How severe is CVE-2021-3567?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-3567 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.