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Advisories

Solanum before commit 2ea1382 Buffer Overflow via Server-to-Server KILL Handler

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Severity
high
Date
Affecting

  • solanum >= 0, < 2ea1382e4262b212a91034258c466f0f6754cd61

CWE
  • CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVSS
8.5
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
Tristan Madani (Talence Security), aaronmdjones
Description
Solanum before commit 2ea1382 contains a buffer overflow vulnerability in ms_kill() that allows malicious linked servers to corrupt memory by sending an overlong kill reason. Attackers controlling a rogue or compromised peer server can send a reason exceeding KILLLEN that overflows a static 512-byte buffer, crashing the ircd or potentially achieving remote code execution.

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