UID THREAD stalls [SOLVED]
"Jesper Schmitz Mouridsen via Info" <[email protected]>
| Newsgroups | gmane.mail.imap.cyrus |
|---|---|
| Message-ID | <[email protected]> |
Hi Just some good news, my old issue https://cyrus.topicbox.com/groups/info/T9aaa6a2c6f46f713-M8e510b8b9d2403f299d68854/uid-thread-refs-us-ascii-all-slow-stalls-forever-on-one-folder I solved with an upgrade from 3.2.5 to 3.4.2 I have not confirmed but I guess the following did it: Fixed CVE-2021-33582: Certain user inputs are used as hash table keys during processing. A poorly chosen string hashing algorithm meant that the user could control which bucket their data was stored in, allowing a malicious user to direct many inputs to a single bucket. Each subsequent insertion to the same bucket requires a strcmp of every other entry in it. At tens of thousands of entries, each new insertion could keep the CPU busy in a strcmp loop for minutes. ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/Tc744853b5c314021-M56b75cda57584b3334768ab8 Delivery options: https://cyrus.topicbox.com/groups/info/subscription