Advisory Details

May 17th, 2023

Linux Kernel ksmbd Memory Exhaustion Denial-of-Service Vulnerability

CVE ID	CVE-2023-2593
CVSS SCORE	5.9, AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AFFECTED VENDORS	Linux
AFFECTED PRODUCTS	Kernel
VULNERABILITY DETAILS	This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of the Linux Kernel. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of new TCP connections. The issue results from the lack of memory release after its effective lifetime. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
ADDITIONAL DETAILS	Linux has issued an update to correct this vulnerability. More details can be found at: https://lore.kernel.org/lkml/CAH2r5msyEy20e=FBx6wPWWc3kXzNR4b+zHshSqidRdFKVf_7Jg@mail.gmail.com/
DISCLOSURE TIMELINE	2022-08-19 - Vulnerability reported to vendor 2023-05-17 - Coordinated public release of advisory
CREDIT	Arnaud Gatignol, Quentin Minster, Florent Saudel, Guillaume Teissier (@thalium_team)

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