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Bug #1689

closed

Stack overflow in case of variables misconfiguration

Added by Alexander Gozman about 8 years ago. Updated about 8 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Alexander Gozman
Target version:
3.0.1RC1
Affected Versions:
Effort:
Difficulty:
Label:

Description

When 'vars' section in configuration file is incorrect, a stack overflow error may occur. For instance:

vars:
HOME_NET: "!$HOME_NET"

This is undefined and recursive declaration. Suricata tries to resolve a variable, calling DetectAddressParse2() again and again until stack space is exhausted and segmentation fault occurs. No error messages are given and user can't see what went wrong.

Valgrind reports:

11392 Stack overflow in thread #1: can't grow stack to 0xffe801000
11392
11392 Process terminating with default action of signal 11 (SIGSEGV)
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 #2

Updated by Victor Julien about 8 years ago

  • Subject changed from [3.0] Stack overflow in case of variables misconfiguration to Stack overflow in case of variables misconfiguration
  • Status changed from New to Closed
  • Assignee set to Alexander Gozman
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