Advisory Details

June 20th, 2024

Linux Kernel TIPC Message Reassembly Use-After-Free Remote Code Execution Vulnerability

CVE ID	CVE-2024-36886
CVSS SCORE	9.0, AV:N/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 remote attackers to execute arbitrary code on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with TIPC bearer enabled are vulnerable. The specific flaw exists within the processing of fragmented TIPC messages. The issue results from the lack of validating the existence of an object prior to performing operations on the 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://github.com/torvalds/linux/commit/080cbb890286cd794f1ee788bbc5463e2deb7c2b
DISCLOSURE TIMELINE	2024-04-25 - Vulnerability reported to vendor 2024-06-20 - Coordinated public release of advisory 2024-08-15 - Advisory Updated
CREDIT	Sam Page (sam4k)

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