CVE-2022-24726: Unauthenticated control plane denial of service attack in Istio
First published: Tue Mar 08 2022(Updated: )
A stack exhaustion flaw was found in the Istio control plane. This flaw allows a remote unauthenticated attacker to send a specially crafted or oversized message to crash the control plane process, resulting in a denial of service condition.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/servicemesh | <0:2.0.9-3.el8 | 0:2.0.9-3.el8 |
| redhat/servicemesh | <0:2.1.2-4.el8 | 0:2.1.2-4.el8 |
| redhat/istio | <1.11.8 | 1.11.8 |
| redhat/istio | <1.12.5 | 1.12.5 |
| redhat/istio | <1.13.2 | 1.13.2 |
| Istio Istio | <1.11.8 | |
| Istio Istio | >=1.12.0<1.12.5 | |
| Istio Istio | >=1.13.0<1.13.2 |
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Reference Links
- https://github.com/golang/go/issues/51112
- https://github.com/istio/istio/commit/6ca5055a4db6695ef5504eabdfde3799f2ea91fd
- https://github.com/istio/istio/security/advisories/GHSA-8w5h-qr4r-2h6g
- https://istio.io/latest/news/security/istio-security-2022-004
- https://github.com/istio/istio/commit/40f6caed64e6869a5589f2e2f38f1e64063fd930
- https://github.com/istio/istio/pull/37804
- https://github.com/istio/istio/commit/458feb160756d6b38f1cee4ddb7a40ff50aaa713
- https://github.com/istio/istio/pull/37791
- https://github.com/istio/istio/commit/e9c3781bd4097f94289b18ecb5a657438f47c9a4
- https://github.com/istio/istio/pull/37792
- https://access.redhat.com/errata/RHSA-2022:1276
- https://access.redhat.com/errata/RHSA-2022:1275
- https://access.redhat.com/security/cve/cve-2022-24726
- https://bugzilla.redhat.com/show_bug.cgi?id=2061638
- https://www.cve.org/CVERecord?id=CVE-2022-24726 https://nvd.nist.gov/vuln/detail/CVE-2022-24726 https://istio.io/latest/news/security/istio-security-2022-004/
Frequently Asked Questions
What is the vulnerability ID for this Istio flaw?
The vulnerability ID for this Istio flaw is CVE-2022-24726.
What is Istio?
Istio is an open platform to connect, manage, and secure microservices.
What is the severity level of CVE-2022-24726?
The severity level of CVE-2022-24726 is high with a CVSS score of 7.5.
How does CVE-2022-24726 affect Istio?
CVE-2022-24726 affects the Istio control plane, istiod, by causing a request processing error that can result in crashing of the control plane.
How can I fix CVE-2022-24726 in Istio?
To fix CVE-2022-24726 in Istio, you need to upgrade to version 1.11.8, 1.12.5, or 1.13.2 depending on your current version.
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