| Name | CVE-2021-3567 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 980061 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| caribou (PTS) | jessie | 0.4.15-1 | vulnerable |
| stretch (security), stretch (lts), stretch | 0.4.21-1+deb9u1 | fixed |
| buster | 0.4.21-7 | fixed |
| bullseye | 0.4.21-7.1 | fixed |
| bookworm | 0.4.21-8 | fixed |
| sid, trixie | 0.4.21-9 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| caribou | source | jessie | (unfixed) | end-of-life | | |
| caribou | source | stretch | (not affected) | | | |
| caribou | source | buster | (not affected) | | | |
| caribou | source | (unstable) | 0.4.21-7.1 | | | 980061 |
Notes
[buster] - caribou <not-affected> (Security impact only with cinnamon-screensaver >= 4.2)
[stretch] - caribou <not-affected> (Security impact only with cinnamon-screensaver >= 4.2)
https://bugs.launchpad.net/ubuntu/+source/caribou/+bug/1912060
https://gitlab.gnome.org/GNOME/caribou/-/merge_requests/3
https://gitlab.gnome.org/GNOME/caribou/-/commit/d41c8e44b12222a290eaca16703406b113a630c6