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zdiArnaud Gatignol, Quentin Minster, Florent Saudel, Guillaume Teissier (@thalium_team)ZDI-22-1687
HistoryDec 22, 2022 - 12:00 a.m.

Linux Kernel ksmbd Memory Exhaustion Denial-of-Service Vulnerability

2022-12-2200:00:00
Arnaud Gatignol, Quentin Minster, Florent Saudel, Guillaume Teissier (@thalium_team)
www.zerodayinitiative.com
26
linux kernel
smb2_negotiate
memory exhaustion
dos
vulnerability
remote attack
authentication
smb2

0.004 Low

EPSS

Percentile

73.2%

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SMB2_NEGOTIATE commands. 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.

0.004 Low

EPSS

Percentile

73.2%