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Bug #4477

closed

Infinite loops in when using InspectionBufferMultipleForList

Added by Philippe Antoine over 3 years ago. Updated about 3 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Philippe Antoine
Target version:
7.0.0-beta1
Affected Versions:
6.0.2
Effort:
Difficulty:
Label:

Description

From https://github.com/OISF/suricata/pull/5622#discussion_r626686822

POC is in #4476 once the buffer overflow gets fixed

Root cause is integer loss of precision casting local_id to uint16_t when there can more than 65536 buffers in a transaction

This may be not the case for dns.query as the maximum PDU length is 65536
But this is definitely the case for MQTT (subscribe topics) where Suricata default maximum PDU is 1Mbyte

Related issues 3 (0 open — 3 closed)

Related to Suricata - Bug #4476: heap-buffer-overflow WRITE in InspectionBufferSetup with use of InspectionBufferGetMulti ClosedPhilippe AntoineActions
Copied to Suricata - Security #4484: Infinite loops in when using InspectionBufferMultipleForListClosedShivani BhardwajActions
Copied to Suricata - Security #4486: Infinite loops in when using InspectionBufferMultipleForListClosedJeff LucovskyActions
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