ZDI-CAN-18408: 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 u32_match_it 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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | ||
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Reference Links
Frequently Asked Questions
What is ZDI-CAN-18408?
ZDI-CAN-18408 is a vulnerability in the Linux Kernel that allows local attackers to disclose sensitive information.
How does ZDI-CAN-18408 affect Linux Kernel?
ZDI-CAN-18408 affects the Linux Kernel by allowing local attackers to disclose sensitive information.
What is the severity of ZDI-CAN-18408?
ZDI-CAN-18408 has a severity level of medium (6.7).
How can ZDI-CAN-18408 be exploited?
ZDI-CAN-18408 can be exploited by an attacker who has the ability to execute high-privileged code on the target system.
Are there any references available for ZDI-CAN-18408?
Yes, you can find references for ZDI-CAN-18408 at the following links: [Reference 1](http://www.zerodayinitiative.com/advisories/ZDI-23-1490/), [Reference 2](https://lore.kernel.org/all/20230828132107.18376-1-wander@redhat.com/), [Reference 3](https://www.zerodayinitiative.com/advisories/ZDI-CAN-18408/)
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