436018 - Incorrect Pharsing From-Address with a comma iso Encoded - replying will answer to TWO adresses - one wrong

Status: RESOLVED DUPLICATE of bug 254519

(Thunderbird :: General, defect)

Description

[Stefan Freisei Mühlbacher]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14
Build Identifier: Version 2.0.0.14 (20080421)

Code from Source

--- snip ---
From: =?iso-8859-1?Q?M=F6ller=2C_Angelika?= <[e-mail]>
To: =?iso-8859-1?B?SuRrZWw=?= <[e-mail]>
--- snap ---

is shown as you can see in Screenshot http://xp8.de/TB-BugIsoFrom.png.

I Think it´s a problem of the "=2C_" string in the iso-encoded from-string.


Reproducible: Always

Steps to Reproduce:
1. a "from" in an eMailclient that produces this: From: =?iso-8859-1?Q?M=F6ller=2C_Angelika?= <[e-mail]>
2. send the mail
3. recieve and open it in Thunderbird
4. you will see TWO "from"´s
5. reply
6. you will see that thunderbird replys to both adresses

Actual Results:  
see that thunderbird replys to both adresses
a) Möller
b) Angelika <[e-mail]>


Expected Results:  
reply to
"Angelika, Möller" <[e-mail]>

could be a security problem - if i write a mail with a spurios sender that results in replying the mail to originalsender AND to the attacker.

Comment 1

[Stefan Freisei Mühlbacher]

Attachment: Screenshot of Message Header in TB 2.0.0.14

Comment 2

[Daniel Veditz [:dveditz]]

The mail spec, at least old rfc 822, allows multiple authors to be listed in From headers. I'll leave this for the mail guys to determine if we're treating this case correctly, but I don't see how it could be a security issue.

Comment 3

[Magnus Melin [:mkmelin]]

This is bub 254519.