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Bug #3790

closed

Stack overflow in DetectFlowbitsAnalyze

Added by Jeff Lucovsky over 4 years ago. Updated over 4 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Jeff Lucovsky
Target version:
5.0.4
Affected Versions:
Effort:
Difficulty:
Label:

Description

When doing torture tests, I discovered a stack overflow in DetectFlowbitsAnalyze. I have made a PR to github @ https://github.com/OISF/suricata/pull/5103

Overflow happens when number of flowbits is sufficiently large which in turn causes array containing FBAnalyze structs to be greater than stack size.

Changeset should apply cleanly to 5.x too.

Related issues 1 (0 open — 1 closed)

Copied from Suricata - Bug #3783: Stack overflow in DetectFlowbitsAnalyzeClosedAntti TönkyräActions
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