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AlienVault OTX General

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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.

CVE-2023-1544 is a vulnerability identified in the QEMU hypervisor's implementation of VMware's paravirtual RDMA (Remote Direct Memory Access) device. The flaw arises when a crafted guest driver within a virtual machine allocates and initializes an excessively large number of page tables, which are used as a ring buffer of descriptors for completion queues (CQ) and asynchronous events. This abnormal allocation leads to an out-of-bounds read condition in QEMU's memory handling, which can cause the hypervisor process to crash. The vulnerability requires the attacker to have high privileges inside the guest VM (PR:H) and local access to the system (AV:L), but no user interaction is necessary (UI:N). The scope of the vulnerability is confined to availability (A:H), as it does not compromise confidentiality or integrity. The CVSS v3.1 base score is 6.0, reflecting a medium severity level. No public exploits are known at this time, and no patches have been explicitly linked in the provided data. The vulnerability could be leveraged by an attacker controlling a guest VM to disrupt the host hypervisor, potentially impacting other VMs and services running on the same host. This is particularly relevant in cloud or virtualized data center environments where QEMU is used as the virtualization backend and VMware paravirtual RDMA devices are enabled.

Detailed information about CVE-2023-1544: Out-of-bounds Read. Get real-time updates, technical details, and mitigation strategies.

CVE-2023-1544: Out-of-bounds Read - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-1544: Out-of-bounds Read

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