ZDI-23-1491: Linux Kernel Netfilter Xtables Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Fri Sep 29 2023(Updated: )
This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the match_flags function. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel.
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Frequently Asked Questions
What is the vulnerability ID for this Linux Kernel vulnerability?
The vulnerability ID for this Linux Kernel vulnerability is ZDI-23-1491.
What is the severity of ZDI-23-1491?
The severity of ZDI-23-1491 is medium with a CVSS score of 5.1.
How does the vulnerability ZDI-23-1491 allow disclosure of sensitive information?
The vulnerability ZDI-23-1491 allows local attackers to disclose sensitive information on affected installations of the Linux Kernel.
What software is affected by vulnerability ZDI-23-1491?
The vulnerability ZDI-23-1491 affects the Linux Kernel.
How can this vulnerability be exploited?
To exploit vulnerability ZDI-23-1491, an attacker must first obtain the ability to execute high-privileged code on the target system.
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