[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-07-30 Thread sam zain
https://bugs.kde.org/show_bug.cgi?id=404698 sam zain changed: What|Removed |Added CC||omarande...@gmail.com --- Comment #25 from sam zain

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-06-28 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #24 from Sandro Knauß --- (In reply to beuc from comment #23) > I wrote something cruder but that works with the 404698-* messagelib test > cases: > https://www.beuc.net/tmp/kdepim-CVE-2019-10732.patch > This should be a good compromise,

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-06-12 Thread bugzilla_noreply
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #23 from b...@beuc.net --- I wrote something cruder but that works with the 404698-* messagelib test cases: https://www.beuc.net/tmp/kdepim-CVE-2019-10732.patch This should be a good compromise, let me know if I missed something. I plan to

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-06-12 Thread bugzilla_noreply
https://bugs.kde.org/show_bug.cgi?id=404698 b...@beuc.net changed: What|Removed |Added CC||b...@beuc.net --- Comment #22 from

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-05-12 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 Sandro Knauß changed: What|Removed |Added Version Fixed In||5.11.2 Latest

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-05-12 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 Sandro Knauß changed: What|Removed |Added Latest Commit|https://commits.kde.org/mes |https://commits.kde.org/mes

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-05-12 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #18 from Sandro Knauß --- Created attachment 120026 --> https://bugs.kde.org/attachment.cgi?id=120026=edit html mail with two images embeded. There is one question, how we should handle forwards with embedded images. We have a testcase

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-05-12 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 Sandro Knauß changed: What|Removed |Added Resolution|--- |FIXED Status|CONFIRMED

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-26 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #16 from Sandro Knauß --- (In reply to Jens Mueller from comment #15) > @David: This would mean if you attach a non-encrypted image to an > encrypted... > > Absolutely, such an email could not be decrypted anymore if you follow our >

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-26 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #15 from Jens Mueller --- @David: This would mean if you attach a non-encrypted image to an encrypted... Absolutely, such an email could not be decrypted anymore if you follow our suggestions (or had to be manually decrypted on the command

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-26 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 Jens Mueller changed: What|Removed |Added Version|5.10.3 |unspecified -- You are receiving this mail

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-22 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #14 from Sandro Knauß --- (In reply to David Faure from comment #11) > - Preventing KMail from *sending* such messages would obviously be no help > (one could just craft that message by hand or using another email client). ACK. > -

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-22 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #13 from Sandro Knauß --- @Jens: what version did you test? You set "Debian Stable" and "5.10.3" this does not match. Debian stable has 16.04.3 aka 5.2.3. I now started to look into the issue, but I can't reproduce it with the attached

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-22 Thread David Faure
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #12 from David Faure --- About the original suggestion: "Do not decrypt emails unless the PGP or S/MIME encrypted part is the root node -- and therefore the only part -- in the MIME tree (exception: multipart/signed for

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-21 Thread David Faure
https://bugs.kde.org/show_bug.cgi?id=404698 David Faure changed: What|Removed |Added CC||fa...@kde.org --- Comment #11 from David Faure

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-18 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #10 from Jens Mueller --- Update: Here's a full (public) report on the issue: https://arxiv.org/ftp/arxiv/papers/1904/1904.07550.pdf For KMail, CVE-2019-10732 was assigned for reply-based `decryption oracles`. -- You are receiving this

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-16 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #9 from Jens Mueller --- Imho, there are no legitimate use cases for `partial encryption` in S/MIME and PGP/MIME, but it's hard to measure if such emails do exist in the wild. In case of PGP/Inline, unfortunately, every part is encrypted

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-15 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=404698 Albert Astals Cid changed: What|Removed |Added CC||mon...@kde.org --- Comment #8 from Albert

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-13 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #7 from Jens Mueller --- Exactly that's the problem. Note that not only one message, but hundreds of captured messages can be wrapped and leaked with one single reply. Traditional message takeover attacks under a new identity (C) are

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-13 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=404698 Albert Astals Cid changed: What|Removed |Added CC||aa...@kde.org --- Comment #6 from Albert

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-12 Thread Michael Palimaka
https://bugs.kde.org/show_bug.cgi?id=404698 Michael Palimaka changed: What|Removed |Added CC||kensing...@gentoo.org -- You are receiving

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-10 Thread bugzilla_noreply
https://bugs.kde.org/show_bug.cgi?id=404698 andreas.sturmlech...@gmail.com changed: What|Removed |Added CC||andreas.sturmlechner@gmail.

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-10 Thread Rex Dieter
https://bugs.kde.org/show_bug.cgi?id=404698 Rex Dieter changed: What|Removed |Added CC||rdie...@gmail.com -- You are receiving this mail

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-09 Thread Sandro Knauß
https://bugs.kde.org/show_bug.cgi?id=404698 Sandro Knauß changed: What|Removed |Added Status|REPORTED|CONFIRMED CC|

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-09 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #4 from Jens Mueller --- Things may have changed in the meantime, but for the version we tested (v5.2.3), there is no need to click on "Decrypt Message". While the plaintext is not shown to the user, if he does not explicitly click "Decrypt

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-08 Thread Nate Graham
https://bugs.kde.org/show_bug.cgi?id=404698 Nate Graham changed: What|Removed |Added CC||n...@kde.org -- You are receiving this mail

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-04-08 Thread Daniel Vrátil
https://bugs.kde.org/show_bug.cgi?id=404698 Daniel Vrátil changed: What|Removed |Added CC||dvra...@kde.org --- Comment #3 from Daniel

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-02-22 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #1 from Jens Mueller --- Created attachment 118288 --> https://bugs.kde.org/attachment.cgi?id=118288=edit Proof-of-concept PGP -- You are receiving this mail because: You are watching all bug changes.

[kmail2] [Bug 404698] Decryption Oracle based on replying to PGP or S/MIME encrypted emails

2019-02-22 Thread Jens Mueller
https://bugs.kde.org/show_bug.cgi?id=404698 --- Comment #2 from Jens Mueller --- Created attachment 118289 --> https://bugs.kde.org/attachment.cgi?id=118289=edit Proof-of-concept S/MIME -- You are receiving this mail because: You are watching all bug changes.