CVE-2021-3567 Security feature bypass in caribou
High 7.5
Published
Updated
Check this codebase for CVE-2021-3567 and fix it if it is affected.
What it is: CVE-2021-3567 is a high-severity vulnerability in caribou, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-3567 in the wild and no public exploit code.
Affected product: caribou. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2021-3567/ (Markdown: https://insights.sbomify.com/CVE-2021-3567/index.md)
Attackers can bypass screen-locking mechanisms in Linux systems using Caribou, potentially compromising system availability and security.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-3567?
CVE-2021-3567 is a high-severity vulnerability in caribou, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2021-3567?
It affects 1 product.
Linux distribution packages (32)
caribou SUSE:Enterprise Storage 6 | All versions | 0.4.21-5.3.1 |
caribou SUSE:HPE Helion OpenStack 8 | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise Module for Desktop Applications 15 SP2 | All versions | 0.4.21-12.5.1 |
caribou SUSE:Linux Enterprise Module for Desktop Applications 15 SP3 | All versions | 0.4.21-12.5.1 |
caribou SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server 12 SP5 | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server 15 SP1-BCL | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise Server 15 SP1-LTSS | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise Server 15-LTSS | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Server for SAP Applications 15 | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise Server for SAP Applications 15 SP1 | All versions | 0.4.21-5.3.1 |
caribou SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 0.4.21-8.3.1 |
caribou SUSE:Linux Enterprise Workstation Extension 12 SP5 | All versions | 0.4.21-8.3.1 |
caribou SUSE:Manager Proxy 4.0 | All versions | 0.4.21-5.3.1 |
caribou SUSE:Manager Retail Branch Server 4.0 | All versions | 0.4.21-5.3.1 |
caribou SUSE:Manager Server 4.0 | All versions | 0.4.21-5.3.1 |
caribou SUSE:OpenStack Cloud 8 | All versions | 0.4.21-8.3.1 |
caribou SUSE:OpenStack Cloud 9 | All versions | 0.4.21-8.3.1 |
caribou SUSE:OpenStack Cloud Crowbar 8 | All versions | 0.4.21-8.3.1 |
caribou SUSE:OpenStack Cloud Crowbar 9 | All versions | 0.4.21-8.3.1 |
caribou openSUSE:Leap 15.2 | All versions | 0.4.21-lp152.7.3.1 |
caribou openSUSE:Leap 15.3 | All versions | 0.4.21-12.5.1 |
Products include Gnome Caribou.
How do I fix CVE-2021-3567?
Apply the vendor's patch.
Is CVE-2021-3567 being exploited?
There is no known exploitation of CVE-2021-3567 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2021-3567, GHSA-g7cf-5cjw-6ppm, SUSE-SU-2021:1943-1, SUSE-SU-2021:2007-1, SUSE-SU-2021:2414-1, UBUNTU-CVE-2021-3567 and 3 more.