Acm-search-v2-api-rhel9: search-v2-api: unbounded tokenreviews cache allows unauthenticated memory-exhaustion dos
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.11 | affected |
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| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 | affected |
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| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 | affected |
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| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 | affected |
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| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 | affected |
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| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Redhat | Acm |
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Vendor Workaround
To mitigate this issue, restrict network access to the `search-v2-api` component within Red Hat Advanced Cluster Management for Kubernetes. Implement network policies to limit incoming connections to only trusted sources that require access to the search API. This will reduce the attack surface for unauthenticated denial-of-service attempts. After applying network policies, ensure that the `search-v2-api` pod is restarted to apply the new network rules effectively.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.737% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:acm:2.11::el9 cpe:/a:redhat:acm:2.14::el9 cpe:/a:redhat:acm:2.16::el9 |
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| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:acm:2.13::el9 cpe:/a:redhat:acm:2.15::el9 cpe:/a:redhat:acm:2.17::el9 |
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| References |
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| References |
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| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
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| Description | A flaw was found in search-v2-api. An unauthenticated attacker can exploit this by sending requests with unique random bearer tokens. Each unique token creates a permanent entry in the unbounded tokenReviews cache, which is not properly cleared. This can lead to memory exhaustion of the search-api pod, resulting in a Denial of Service (DoS). | |
| Title | Acm-search-v2-api-rhel9: search-v2-api: unbounded tokenreviews cache allows unauthenticated memory-exhaustion dos | |
| First Time appeared |
Redhat
Redhat acm |
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| Weaknesses | CWE-770 | |
| CPEs | cpe:/a:redhat:acm:2 | |
| Vendors & Products |
Redhat
Redhat acm |
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| References |
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| Metrics |
cvssV3_1
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