ZDI-CAN-18511: Linux Kernel IPv6 Segment Routing Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Wed May 17 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 processing of seg6 attributes. 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 buffer. An attacker can leverage this in conjunction with other vulnerabilties to escalate privileges and execute arbitrary code in the context of the kernel.
| Affected Software | Affected Version | How to fix |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this Linux Kernel vulnerability?
The vulnerability ID is ZDI-CAN-18511.
What is the severity of the ZDI-CAN-18511 vulnerability?
The severity of the ZDI-CAN-18511 vulnerability is medium.
How does this vulnerability impact Linux Kernel installations?
This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel.
How can an attacker exploit this vulnerability?
An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability.
Are there any references available for this vulnerability?
Yes, you can refer to the following links for more information: [Link 1](http://www.zerodayinitiative.com/advisories/ZDI-23-692/), [Link 2](https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=84a53580c5d2), [Link 3](https://www.zerodayinitiative.com/advisories/ZDI-CAN-18511/)
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