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Advisories

Wazuh Agent 1.0.0 before 4.14.9 Stack Buffer Overflow via read_snortfull

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Severity
medium
Date
Affecting

  • wazuh >= 1.0.0, < 4.14.9

CWE
  • CWE-121 Stack-based Buffer Overflow
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
ZemarKhos, vikman90
Description
Wazuh agent from 1.0.0 before 4.14.9 contains a stack-based buffer overflow in the logcollector snort-full log reader that miscalculates remaining buffer space in read_snortfull(). Attackers who write crafted multi-line content to a monitored snort-full log can overflow the 65,280-byte stack buffer, crashing the agent or overwriting an SEH handler on 32-bit Windows agents running as SYSTEM.

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