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K
zdiReno Robert of Trend Micro Zero Day InitiativeZDI-22-1037
HistoryAug 02, 2022 - 12:00 a.m.

NetBSD Kernel getkerninfo System Call Uninitialized Memory Information Disclosure Vulnerability

2022-08-0200:00:00
Reno Robert of Trend Micro Zero Day Initiative
www.zerodayinitiative.com
8
netbsd
kernel
getkerninfo
system call
uninitialized memory
information disclosure
local
attackers
sensitive information
vulnerability
low-privileged code
stat system call
initialization of memory
escalate privileges
arbitrary code
kernel

This vulnerability allows local attackers to disclose sensitive information on affected installations of NetBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the stat system call. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel.