CVE-2023-52801
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2023-52801 is a vulnerability in the Linux kernel related to the iommufd subsystem. The issue specifically involves a missing update of domainsitree after splitting ioptarea, which was discovered and documented in 2023 (NVD, Rapid7).

Technical details

The vulnerability occurs in the ioptareasplit() function where, if the original ioptarea has filled a domain and is linked to domainsitree, the pagesnodes are not properly reinserted. This oversight leads to corruption of the domainsitree and potential Use-After-Free (UAF) conditions. The vulnerability has been assigned a CVSS score of 4.0 (AV:L/AC:M/Au:N/C:P/I:P/A:P), indicating moderate severity (Rapid7).

Impact

When exploited, this vulnerability can lead to domainsitree corruption and Use-After-Free conditions in the Linux kernel, potentially compromising system stability and security ([Rapid7](https://www.rapid7.com/db/vulnerabilities/almalinux-cve-2023-52801/)).

Mitigation and workarounds

The vulnerability has been addressed through kernel updates available in various Linux distributions. Red Hat and Alma Linux have released security updates to address this vulnerability through their respective channels (Red Hat, Rapid7).

Additional resources


SourceThis report was generated using AI

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