Advisory Details

July 29th, 2024

Linux Kernel Netfilter Conntrack Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2023-39197
CVSS SCORE	4.0, AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
AFFECTED VENDORS	Linux
AFFECTED PRODUCTS	Kernel
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the DCCP protocol. 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.
ADDITIONAL DETAILS	Linux has issued an update to correct this vulnerability. More details can be found at: https://access.redhat.com/security/cve/CVE-2023-39197
DISCLOSURE TIMELINE	2023-05-19 - Vulnerability reported to vendor 2024-07-29 - Coordinated public release of advisory 2024-08-15 - Advisory Updated
CREDIT	Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative

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