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AlienVault OTX General

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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVE-2024-0582 is a use-after-free vulnerability affecting the Linux kernel's io_uring feature, specifically in the handling of buffer rings registered with IORING_REGISTER_PBUF_RING. The flaw occurs when a user registers a buffer ring, maps it into memory using mmap(), and subsequently frees it improperly, leading to a memory leak and use-after-free condition. This vulnerability can be exploited by a local user with limited privileges to cause a denial of service via system crashes or potentially escalate their privileges to gain higher-level access. The vulnerability is classified with a CVSS 3.1 score of 7.8, indicating high severity, with attack vector local, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The io_uring interface is widely used in modern Linux kernels to improve asynchronous I/O performance, making this vulnerability relevant for many Linux distributions and environments. Although no public exploits are currently known, the flaw's nature and impact make it a critical concern for system administrators and security teams. The vulnerability was published on January 16, 2024, and is tracked under CVE-2024-0582. The root cause lies in improper memory management within the kernel's io_uring buffer ring registration and freeing process, which can be triggered by local users interacting with the kernel's io_uring API.

Detailed information about CVE-2024-0582: Use After Free. Get real-time updates, technical details, and mitigation strategies.

CVE-2024-0582: Use After Free - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-0582: Use After Free

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