# Cyrus IMAP 2.5.7 Release Notes

Important

This is a bug-fix release in the stable 2.5 series.

Refer to the Cyrus IMAP 2.5.0 Release Notes for important information about the 2.5 series, including upgrading instructions.

Download from GitHub:

> - https://github.com/cyrusimap/cyrus-imapd/releases/download/cyrus-imapd-2.5.7/cyrus-imapd-2.5.7.tar.gz

> - https://github.com/cyrusimap/cyrus-imapd/releases/download/cyrus-imapd-2.5.7/cyrus-imapd-2.5.7.tar.gz.sig

## Changes Since 2.5.6

### Security fixes

- CVE-2015-8077, CVE-2015-8078: protect against integer overflow in urlfetch range checks

### SSL changes

- Support for legacy SSLv2 and SSLv3 protocols has been removed

  These protocols were previously enabled by default, but could be disabled by removing them from `tls_versions` in imapd.conf(5). They are now completely unsupported.

  Administrators needing to support these protocols may find a patch in `contrib/allow-broken-sslv23.patch`. With this patch, SSLv2 and SSLv3 will be disabled by default, but can be enabled by adding them to `tls_versions`. Users of this patch do so at their own risk.

- Support for TLS compression has been removed (thanks Ondřej Surý)

  This was previously disabled by default, but could be enabled with `tls_compression` in imapd.conf(5). It is now completely unsupported.

### Bug fixes

- Fixed: crash in sync_server when built with buggy Sun CC (thanks Jens Erat)

- Fixed bug #3908: crash in ctl_mboxlist -m

- Fixed: setrlimit error on startup

- Fixed task 216: don't break quotas when transferring mailboxes between backends

- Fixed: idled shutdown on platforms without pselect (thanks Thomas Jarosch)

- Fixed: autocreate_sieve now uses `sievedir` setting correctly

- Fixed bug #3907: cyradm `--cadir` option is now called `--capath`, and works (thanks Leena Heino)

- Fixed bug #3905: fix segfault in all daemons when built with `-DUSE_SETPROCTITLE`

- Fixed: pop3d no longer applies `plaintextloginpause` to TLS connections

- Fixed bug #3866: lmtpd now consults local mailboxes.db first, before mupdate master (thanks Michael Menge)

### Debian patches

A number of patches from Debian's repository have been merged. Thanks to the various developers who contributed them to the Debian project, and to Ondřej Surý for collating and sending them upstream.