CVE-2021-3567: Input Validation
First published: Thu May 20 2021(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/caribou | <0.4.21 | 0.4.21 |
| Gnome Caribou | <0.4.21 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://bugs.launchpad.net/ubuntu/+source/caribou/+bug/1912060
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1962838
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1962837
- https://gitlab.gnome.org/GNOME/caribou/-/merge_requests/3
- https://gitlab.gnome.org/GNOME/caribou/-/commit/d41c8e44b12222a290eaca16703406b113a630c6
- https://gitlab.gnome.org/GNOME/caribou/-/issues/7
- https://gitlab.gnome.org/GNOME/caribou/-/commit/76fbd11575f918fc898cb0f5defe07f67c11ec38
- https://gitlab.gnome.org/GNOME/caribou/-/merge_requests/5
- https://gitlab.gnome.org/GNOME/caribou/-/commit/ba8219ccc67d1d0964fb9ff25125c3be5fb80681
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1962836#c0
- https://github.com/linuxmint/cinnamon-screensaver/issues/354
- https://bugzilla.redhat.com/show_bug.cgi?id=1962836
Frequently Asked Questions
What is CVE-2021-3567?
CVE-2021-3567 is a vulnerability in Caribou that allows an attacker to bypass screen-locking applications that use Caribou as an input mechanism.
What is the severity of CVE-2021-3567?
The severity of CVE-2021-3567 is high with a CVSS score of 7.5.
How does CVE-2021-3567 affect systems?
CVE-2021-3567 poses a threat to system availability.
Which software versions are affected by CVE-2021-3567?
Caribou versions up to and excluding 0.4.21 are affected.
How can the vulnerability CVE-2021-3567 be fixed?
To fix CVE-2021-3567, update Caribou to version 0.4.21 or later.
- collector/nvd-index
- agent/references
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/last-modified-date
- agent/weakness
- agent/severity
- agent/description
- agent/tags
- agent/event
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-3567
- agent/software-canonical-lookup
- vendor/gnome
- canonical/gnome caribou
- package-manager/redhat