GHSA-p4rx-7wvg-fwrc
Suggest an improvement- Source
- https://github.com/advisories/GHSA-p4rx-7wvg-fwrc
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-p4rx-7wvg-fwrc/GHSA-p4rx-7wvg-fwrc.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-p4rx-7wvg-fwrc
- Aliases
- Published
- 2024-01-10T15:27:45Z
- Modified
- 2024-06-28T15:59:54.674723Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- CRI-O's pods can break out of resource confinement on cgroupv2
- Details
-
Impact
What kind of vulnerability is it? Who is impacted? All versions of CRI-O running on cgroupv2 nodes. Unchecked access to an experimental annotation allows a container to be unconfined. Back in 2021, support was added to support an experimental annotation that allows a user to request special resources in cgroupv2. It was supposed to be gated by an experimental annotation:
io.kubernetes.cri-o.UnifiedCgroup, which was supposed to be filtered from the list of allowed annotations . However, there is a bug in this code which allows any user to specify this annotation, regardless of whether it's enabled on the node. The consequences of this are a pod can specify any amount of memory/cpu and get it, circumventing the kubernetes scheduler, and potentially be able to DOS a node.Patches
Has the problem been patched? What versions should users upgrade to? 1.29.1, 1.28.3, 1.27.3
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading? use cgroupv1
References
Are there any links users can visit to find out more?
- References
-
- https://github.com/cri-o/cri-o/security/advisories/GHSA-p4rx-7wvg-fwrc
- https://nvd.nist.gov/vuln/detail/CVE-2023-6476
- https://github.com/cri-o/cri-o/pull/4479
- https://github.com/cri-o/cri-o/commit/75effcb1a25851a736e82dba1f7d8cee93ee159e
- https://access.redhat.com/errata/RHSA-2024:0195
- https://access.redhat.com/errata/RHSA-2024:0207
- https://access.redhat.com/security/cve/CVE-2023-6476
- https://bugzilla.redhat.com/show_bug.cgi?id=2253994
- https://github.com/cri-o/cri-o
- https://github.com/cri-o/cri-o/blob/main/pkg/config/workloads.go#L103-L107
Affected packages
Go / github.com/cri-o/cri-o
Package
- Name
- github.com/cri-o/cri-o
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/cri-o/cri-o
Go / github.com/cri-o/cri-o
Package
- Name
- github.com/cri-o/cri-o
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/cri-o/cri-o
Go / github.com/cri-o/cri-o
Package
- Name
- github.com/cri-o/cri-o
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/cri-o/cri-o