Open Bug 1563012 Opened 3 years ago Updated 2 years ago

[W64] Firefox 69.0 beta (32-bit) quits after repeating loading long (HTTP) URL in iframe


(Core :: DOM: Core & HTML, defect, P3)

68 Branch





(Reporter: zarco.zwier, Unassigned)


(Blocks 1 open bug)


(Keywords: csectype-dos, csectype-oom)


(1 file)

Attached file TestMozilla4.html

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

Open the PoC under Microsoft Windows [Version 10.0.17763.592] with Firefox 68.0 beta 32-bit

Actual results:

Firefox quits, this can be be used as Denial of Service

Expected results:

Show the yellow bar that the website slows Firefox and not quit. is an empty file.

Can you link to a submitted crashreport from about:crashes that corresponds to the crash you're seeing with your testcase?

Flags: needinfo?(zarco.zwier)
Flags: needinfo?(zarco.zwier)

Delay that, not sure that one was done with empty profile.
This one surely is:

Both of those are OOM crashes (ie we ran out of memory). One of them in the content process (so that would have shown up as a tab crash, not taking down Firefox's "main" process). The other one has no symbols for some reason? Either way, it looks like this is basically memory exhaustion.

Blocks: eviltraps
Group: firefox-core-security
Component: Untriaged → General
Product: Firefox → Core
Priority: -- → P3

It looks like this test case is jamming a large string into the src field of an iframe, so I'll move this to DOM.

Component: General → DOM: Core & HTML
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