GLSA 202006-23: Cyrus IMAP Server: Access restriction bypass
| Severity: | normal |
| Title: | Cyrus IMAP Server: Access restriction bypass |
| Date: | 06/15/2020 |
| Bugs: | |
| ID: | 202006-23 |
Synopsis
An error in Cyrus IMAP Server allows mailboxes to be created with administrative privileges.Background
The Cyrus IMAP Server is an efficient, highly-scalable IMAP e-mail server.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| net-mail/cyrus-imapd | < 3.0.13 | >= 3.0.13 | All supported architectures |
Description
An issue was discovered in Cyrus IMAP Server where sieve script uploading is excessively trusted.
Impact
A user can use a sieve script to create any mailbox with administrator privileges.
Workaround
Disable sieve script uploading until the upgrade is complete.
Resolution
All Cyrus IMAP Server users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-3.0.13"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.