CVE-2022-27652
First published: Tue Mar 22 2022(Updated: )
A flaw was found in cri-o, where containers were incorrectly started with non-empty default permissions. A vulnerability was found in Moby (Docker Engine) where containers started incorrectly with non-empty inheritable Linux process capabilities. This flaw allows an attacker with access to programs with inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/cri-o | <0:1.23.2-8.rhaos4.10.git8ad5d25.el8 | 0:1.23.2-8.rhaos4.10.git8ad5d25.el8 |
| redhat/cri-o | <0:1.22.5-7.rhaos4.9.git3dbcd3c.el7 | 0:1.22.5-7.rhaos4.9.git3dbcd3c.el7 |
| Kubernetes CRI-O | ||
| Fedoraproject Fedora | =35 | |
| Mobyproject Moby | <20.10.14 | |
| Redhat Openshift Container Platform | =3.11 | |
| Redhat Openshift Container Platform | =4.0 |
Remedy
The entry point of a container can be modified to use a utility like capsh(1) to drop inheritable capabilities prior to the primary process starting.
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2066839
- https://github.com/cri-o/cri-o/security/advisories/GHSA-4hj2-r2pm-3hc6
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070107
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070112
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070104
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070111
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070105
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070108
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070109
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070110
- https://access.redhat.com/errata/RHSA-2022:1600
- https://access.redhat.com/security/cve/cve-2022-27652
- https://www.cve.org/CVERecord?id=CVE-2022-27652 https://nvd.nist.gov/vuln/detail/CVE-2022-27652 https://github.com/cri-o/cri-o/security/advisories/GHSA-4hj2-r2pm-3hc6
- https://access.redhat.com/errata/RHBA-2022:5433
- https://access.redhat.com/security/cve/CVE-2022-27652
Frequently Asked Questions
What is CVE-2022-27652?
CVE-2022-27652 is a vulnerability found in cri-o, where containers are incorrectly started with non-empty default permissions.
What is the severity of CVE-2022-27652?
The severity of CVE-2022-27652 is medium with a CVSSv3 score of 5.3.
How does CVE-2022-27652 impact cri-o?
CVE-2022-27652 allows an attacker with access to programs within a container to escalate privileges and potentially execute arbitrary code on the host.
How can I fix CVE-2022-27652 in cri-o?
To fix CVE-2022-27652 in cri-o, it is recommended to upgrade to version 1.24.0 or later.
What are the references for CVE-2022-27652?
The references for CVE-2022-27652 are: - [Bugzilla Red Hat - 2070107](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070107) - [Bugzilla Red Hat - 2070112](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070112) - [Bugzilla Red Hat - 2070104](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2070104)
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