SB2025110610 - Multiple vulnerabilities in containerd

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Incorrect default permissions (CVE-ID: CVE-2024-25621)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions set for critical files, such as /var/lib/containerd (0711 instead of 0700), /run/containerd/io.containerd.grpc.v1.cri (0755 instead of 0700), and /run/containerd/io.containerd.sandbox.controller.v1.shim (0711 instead of 0700) and for the temp directory. A local user can escalate privileges on the system.

2) Resource exhaustion (CVE-ID: CVE-2025-64329)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists in CRI Attach implementation due to goroutine leaks. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack against the host.

Remediation

Install update from vendor's website.

References

• https://github.com/containerd/containerd/security/advisories/GHSA-pwhc-rpq9-4c8w
• https://github.com/containerd/containerd/security/advisories/GHSA-m6hq-p25p-ffr2