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Gentoo Linux Security Advisory GLSA 202006-23 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Cyrus IMAP Server: Access restriction bypass |
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Date: June 15, 2020 |
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Bugs: #703630 |
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ID: 202006-23 |
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Synopsis |
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======== |
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|
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An error in Cyrus IMAP Server allows mailboxes to be created with |
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administrative privileges. |
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Background |
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========== |
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|
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The Cyrus IMAP Server is an efficient, highly-scalable IMAP e-mail |
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server. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-mail/cyrus-imapd < 3.0.13 >= 3.0.13 |
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Description |
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=========== |
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|
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An issue was discovered in Cyrus IMAP Server where sieve script |
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uploading is excessively trusted. |
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Impact |
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====== |
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|
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A user can use a sieve script to create any mailbox with administrator |
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privileges. |
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Workaround |
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========== |
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Disable sieve script uploading until the upgrade is complete. |
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Resolution |
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========== |
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All Cyrus IMAP Server users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-3.0.13" |
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|
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References |
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========== |
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[ 1 ] CVE-2019-19783 |
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https://nvd.nist.gov/vuln/detail/CVE-2019-19783 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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https://security.gentoo.org/glsa/202006-23 |
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|
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2020 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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https://creativecommons.org/licenses/by-sa/2.5 |
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