GHSA-33hq-f2mf-jm3c CVE-2023-33191 GO-2023-1801
kyverno seccomp control can be circumvented
- Severity
- 4.6 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 0.48%
- Chance of exploitation in the next 30 days. Higher than 41.78% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-284 Improper Access Control
- Fix
1.9.4- Upgrade github.com/kyverno/kyverno to this version or later
Description
Impact
Users of the podSecurity (validate.podSecurity) subrule in Kyverno versions v1.9.2 and v1.9.3 may be unable to enforce the check for the Seccomp control at the baseline level when using a version value of latest. There is no effect if a version number is referenced instead. See the documentation for information on this subrule type. Users of Kyverno v1.9.2 and v1.9.3 are affected.
Patches
v1.9.4 v1.10.0
Workarounds
To work around this issue without upgrading to v1.9.4, temporarily install individual policies for the respective Seccomp checks in baseline here and restricted here.
References
Affected versions
Go
| Package | Vulnerable | Fixed in |
|---|---|---|
| github.com/kyverno/kyverno | >= 1.9.2, < 1.9.4 |
1.9.4 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
github.com/kyverno/kyverno Go → 1.9.4
- go
go get github.com/kyverno/kyverno@v1.9.4 && go mod tidy
Severity breakdown
CVSS 3.1 4.6
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Weakness
CWE-284: Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
How to prevent it
- Architecture and Design, Operation: Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-79gf-7frw-68m9 Kyverno's NamespacedGeneratingPolicy generator.apply() namespace argument unvalidated -- background controller creates RoleBindings in any namespace including kube-system | Critical | Also affects github.com/kyverno/kyverno |
| GHSA-fpjq-c37h-cqcv Kyverno Controller Denial of Service via forEach Mutation Panic | High | Also affects github.com/kyverno/kyverno |
| GHSA-8wfp-579w-6r25 Kyverno apiCall automatically forwards ServiceAccount token to external endpoints (credential leak) | High | Also affects github.com/kyverno/kyverno |
| GHSA-f9g8-6ppc-pqq4 Kyverno: ServiceAccount token leaked to external servers via apiCall service URL | Critical | Also affects github.com/kyverno/kyverno |
| GHSA-cvq5-hhx3-f99p Kyverno: Cross-Namespace Read Bypasses RBAC Isolation (CVE-2026-22039 Incomplete Fix) | High | Also affects github.com/kyverno/kyverno |
| GHSA-q93q-v844-jrqp kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token | High | Also affects github.com/kyverno/kyverno |
| GHSA-fmqp-4wfc-w3v7 Kyverno APICall SSRF Vulnerability Leading to Multi-Tenant Isolation Breach | Medium | Also affects github.com/kyverno/kyverno |
| GHSA-qr4g-8hrp-c4rw Kyverno has unrestricted outbound requests in Kyverno apiCall enabling SSRF | High | Also affects github.com/kyverno/kyverno |
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