CVE-2022-2132 in DPDK
Summary
by MITRE • 08/31/2022
A permissive list of allowed inputs flaw was found in DPDK. This issue allows a remote attacker to cause a denial of service triggered by sending a crafted Vhost header to DPDK.
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Analysis
by VulDB Data Team • 01/21/2026
The vulnerability identified as CVE-2022-2132 represents a critical security flaw within the Data Plane Development Kit (DPDK) framework, specifically manifesting as a permissive input validation mechanism that fails to adequately filter incoming data. This weakness resides in the vhost implementation component of DPDK, which serves as a virtualization interface for network applications running in virtual environments. The flaw stems from insufficient validation of header fields within the vhost communication protocol, creating an avenue for malicious actors to exploit the system through crafted input sequences.
The technical nature of this vulnerability falls under the category of input validation failures and can be classified as CWE-20, which encompasses weaknesses related to improper input validation. The flaw specifically affects the processing of vhost headers that are transmitted between virtual machines and hypervisors within virtualized environments. When a remote attacker crafts malicious vhost headers containing oversized or malformed data sequences, the vulnerable DPDK implementation fails to properly sanitize these inputs before processing them, leading to potential system instability.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it can be leveraged to create cascading failures within virtualized network infrastructures. Systems utilizing DPDK for high-performance packet processing in virtualized environments become particularly susceptible to this attack vector, where a single malicious packet can trigger system-wide disruptions. The vulnerability is especially concerning in cloud computing environments and network function virtualization (NFV) deployments where DPDK is commonly employed for accelerated packet processing, potentially allowing attackers to compromise entire virtualized network services.
Attackers can exploit this vulnerability by sending specifically crafted vhost headers that exceed expected parameter limits or contain malformed data structures that cause the DPDK processing components to enter unstable states. The remote nature of this attack means that adversaries need not be physically present within the target network, enabling them to initiate denial of service conditions from external positions. This capability aligns with ATT&CK technique T1499.004, which covers network denial of service attacks, and demonstrates how weaknesses in virtualization layers can be leveraged to compromise system availability.
Mitigation strategies for CVE-2022-2132 should prioritize immediate patch application from DPDK vendors, as the most effective solution addresses the root cause by implementing proper input validation mechanisms. Organizations should also consider implementing network segmentation and monitoring solutions to detect anomalous vhost header patterns that may indicate exploitation attempts. Additional defensive measures include deploying intrusion detection systems capable of identifying malformed vhost communications and establishing strict input validation policies within virtualized network environments. The vulnerability highlights the importance of proper input sanitization in virtualization interfaces and underscores the need for comprehensive security testing of hypervisor and virtualization layer components.