Advisory Details

June 21st, 2024

Linux Kernel ICMPv6 Router Advertisement Race Condition Remote Code Execution Vulnerability

ZDI-24-842
ZDI-CAN-22579

CVE ID CVE-2023-6200
CVSS SCORE 8.3, AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
AFFECTED VENDORS Linux
AFFECTED PRODUCTS Kernel
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of Route Information options. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.

ADDITIONAL DETAILS Linux has issued an update to correct this vulnerability. More details can be found at:
https://bugzilla.redhat.com/show_bug.cgi?id=2250377
DISCLOSURE TIMELINE
  • 2023-11-16 - Vulnerability reported to vendor
  • 2024-06-21 - Coordinated public release of advisory
  • 2024-08-15 - Advisory Updated
CREDIT Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative
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