Endless Infinite loop in Blender-thumnailing due to logical bugs #99711

Closed
opened 2022-07-14 20:24:30 +02:00 by Sangjun Park · 4 comments

System Information
Operating system: Ubuntu 20.04.4 LTS
Graphics card: 2b:00.0 VGA compatible controller: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] (rev a1)

Blender Version
Broken:Blender 3.3.0 Alpha branch : master, commit 3b15467e97 Date: Thu Jul 14 16:33:21 2022 +0200

Short description of error
./blender-thumbnailer endless.blend ~/test.png
reproduce endless while loop due to logical bugs

Exact steps for others to reproduce the error
./blender-thumbnailer endless.blend ~/test.png

Affect
Attacker can abuse this like DDOS Attack

POC video below
https://youtu.be/gq54V0j--Os

POC blend file below
endless.blend

both is same

https://drive.google.com/file/d/1pjY3O7yj-z-wRqWUjulP76pmZXOzTCdQ/view?usp=sharing

**System Information** Operating system: Ubuntu 20.04.4 LTS Graphics card: 2b:00.0 VGA compatible controller: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] (rev a1) **Blender Version** Broken:Blender 3.3.0 Alpha branch : master, commit 3b15467e97abf473d4d25c7382999115d3169a57 Date: Thu Jul 14 16:33:21 2022 +0200 **Short description of error** ```./blender-thumbnailer endless.blend ~/test.png``` reproduce endless while loop due to logical bugs **Exact steps for others to reproduce the error** ```./blender-thumbnailer endless.blend ~/test.png``` **Affect** Attacker can abuse this like DDOS Attack **POC video below** https://youtu.be/gq54V0j--Os **POC blend file below** [endless.blend](https://archive.blender.org/developer/F13292996/endless.blend) both is same https://drive.google.com/file/d/1pjY3O7yj-z-wRqWUjulP76pmZXOzTCdQ/view?usp=sharing
Author

Added subscriber: @sangjun-park

Added subscriber: @sangjun-park

This issue was referenced by 24a2b5cb12

This issue was referenced by 24a2b5cb1292f769dd86e314471443976d5e9512

This issue was referenced by c8e8f107bf

This issue was referenced by c8e8f107bf82fb56f49101e1098f4c697b16cfeb

Changed status from 'Needs Triage' to: 'Resolved'

Changed status from 'Needs Triage' to: 'Resolved'
Campbell Barton self-assigned this 2022-07-15 06:54:28 +02:00
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Reference: blender/blender#99711
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