Red Hat Security Advisory: Multicluster Engine for Kubernetes 2.4.6 security updates and bug fixes
Multicluster engine for Kubernetes v2.4.6 images Multicluster engine for Kubernetes provides the foundational components that are necessary for the centralized management of multiple Kubernetes-based clusters across data centers, public clouds, and private clouds. You can use the engine to create new Red Hat OpenShift Container Platform clusters or to bring existing Kubernetes-based clusters under management by importing them. After the clusters are managed, you can use the APIs that are provided by the engine to distribute configuration based on placement policy. nodejs/elliptic: EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended (CVE-2024-42459) nodejs/elliptic: ECDSA signature malleability occurs because there is a missing check for whether the leading bit of r and s is zero (CVE-2024-42460) nodejs/elliptic: ECDSA implementation malleability due to BER-enconded signatures being allowed (CVE-2024-42461) Missing Validation in Elliptic's EDDSA Signature Verification(CVE-2024-48949)
AI Analysis
Technical Summary
The Multicluster Engine for Kubernetes prior to version 2.4.6 contains multiple cryptographic signature malleability vulnerabilities in the nodejs/elliptic library. Specifically, CVE-2024-42459 involves missing signature length checks in EDDSA signatures allowing zero-valued bytes to be removed or appended. CVE-2024-42460 concerns missing checks on the leading bit of r and s values in ECDSA signatures. CVE-2024-42461 involves acceptance of BER-encoded signatures causing malleability in ECDSA implementation. Additionally, CVE-2024-48949 describes missing validation in EDDSA signature verification. These issues could undermine the integrity of cryptographic operations relying on these signatures. Red Hat addressed these vulnerabilities in the 2.4.6 release of the Multicluster Engine for Kubernetes by updating the relevant container images.
Potential Impact
These vulnerabilities affect the cryptographic signature verification process in the nodejs/elliptic library used by the Multicluster Engine for Kubernetes. Signature malleability can potentially allow attackers to manipulate signatures without detection, which could impact the integrity of authentication or authorization mechanisms relying on these signatures. The advisory rates the impact as Important, indicating a high severity level. There are no known exploits in the wild reported at this time.
Mitigation Recommendations
Red Hat has released version 2.4.6 of the Multicluster Engine for Kubernetes which includes security updates and bug fixes addressing these vulnerabilities. Users should upgrade to version 2.4.6 or later to remediate these issues. Detailed installation and upgrade instructions are available in the Red Hat documentation at https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.9/html/clusters/install_upgrade/installing-while-connected-online-mce. No other mitigations are specified or required by the vendor.
Red Hat Security Advisory: Multicluster Engine for Kubernetes 2.4.6 security updates and bug fixes
Description
Multicluster engine for Kubernetes v2.4.6 images Multicluster engine for Kubernetes provides the foundational components that are necessary for the centralized management of multiple Kubernetes-based clusters across data centers, public clouds, and private clouds. You can use the engine to create new Red Hat OpenShift Container Platform clusters or to bring existing Kubernetes-based clusters under management by importing them. After the clusters are managed, you can use the APIs that are provided by the engine to distribute configuration based on placement policy. nodejs/elliptic: EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended (CVE-2024-42459) nodejs/elliptic: ECDSA signature malleability occurs because there is a missing check for whether the leading bit of r and s is zero (CVE-2024-42460) nodejs/elliptic: ECDSA implementation malleability due to BER-enconded signatures being allowed (CVE-2024-42461) Missing Validation in Elliptic's EDDSA Signature Verification(CVE-2024-48949)
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Multicluster Engine for Kubernetes prior to version 2.4.6 contains multiple cryptographic signature malleability vulnerabilities in the nodejs/elliptic library. Specifically, CVE-2024-42459 involves missing signature length checks in EDDSA signatures allowing zero-valued bytes to be removed or appended. CVE-2024-42460 concerns missing checks on the leading bit of r and s values in ECDSA signatures. CVE-2024-42461 involves acceptance of BER-encoded signatures causing malleability in ECDSA implementation. Additionally, CVE-2024-48949 describes missing validation in EDDSA signature verification. These issues could undermine the integrity of cryptographic operations relying on these signatures. Red Hat addressed these vulnerabilities in the 2.4.6 release of the Multicluster Engine for Kubernetes by updating the relevant container images.
Potential Impact
These vulnerabilities affect the cryptographic signature verification process in the nodejs/elliptic library used by the Multicluster Engine for Kubernetes. Signature malleability can potentially allow attackers to manipulate signatures without detection, which could impact the integrity of authentication or authorization mechanisms relying on these signatures. The advisory rates the impact as Important, indicating a high severity level. There are no known exploits in the wild reported at this time.
Mitigation Recommendations
Red Hat has released version 2.4.6 of the Multicluster Engine for Kubernetes which includes security updates and bug fixes addressing these vulnerabilities. Users should upgrade to version 2.4.6 or later to remediate these issues. Detailed installation and upgrade instructions are available in the Red Hat documentation at https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.9/html/clusters/install_upgrade/installing-while-connected-online-mce. No other mitigations are specified or required by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:8533
- Cve Count
- 4
- Additional Cves
- ["CVE-2024-42460","CVE-2024-42461","CVE-2024-48949"]
Threat ID: 6a419cbc27e9c79719abf447
Added to database: 06/28/2026, 22:14:20 UTC
Last enriched: 08/16/2026, 18:13:13 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 38
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