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Clicking link in an e-mail causes DoS to target! [Linux.]

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Alex Atkin UK
 
Posts: 2
Joined: March 23rd, 2012, 4:55 pm

Post Posted January 12th, 2018, 3:51 am

I'm using Thunderbird 52.5.2 on Fedora 27.

For a while now I have not been able to open links in e-mails by clicking on them. This seemed a minor inconvenience but I have discovered its far more serious.

If I click a link then Thunderbird initiates the request (why? Its supposed to just send the link to the browser), then it does so again and again as quickly as that single thread can, until I kill Thunderbird. I only became aware of this little quirk after I got blocked from a forum for too many connections and confirmed it testing on my local server:

Code: Select all
god.lan - - [12/Jan/2018:10:35:17 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:18 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:19 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:20 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:21 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:22 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:22 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:22 +0000] "GET / HTTP/2.0" 200 35522
god.lan - - [12/Jan/2018:10:35:22 +0000] "GET / HTTP/2.0" 200 35522


Has anyone come across this before and have any clue where I should be looking to fix it?

I can live with having to copy/paste all links but I'm so used to clicking them that I keep accidentally doing so and now knowing what its doing I'm concerned my IP is going to get flagged at some point for attempted DoS.

I would start a new profile but I have TONS of e-mails, folders and filters in place I do not want to lose.
Last edited by LIMPET235 on January 12th, 2018, 4:12 am, edited 1 time in total.
Reason: Added [Linux] to the title.

tanstaafl
Moderator

User avatar
 
Posts: 44128
Joined: July 30th, 2003, 5:06 pm

Post Posted January 12th, 2018, 10:23 am

Try setting the default browser again per http://kb.mozillazine.org/Default_browser#Linux or http://kb.mozillazine.org/Changing_the_ ... hunderbird

If that doesn't help try running in safe mode (help -> restart with add-ons disabled) to see if an add-on caused this problem, due to it no longer working correctly after the latest Thunderbird upgrade.

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