drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Dovecot
Name: |
Zwei Probleme in Dovecot |
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ID: |
202101-01 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mo, 11. Januar 2021, 00:05 |
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Referenzen: |
https://nvd.nist.gov/vuln/detail/CVE-2020-25275
https://nvd.nist.gov/vuln/detail/CVE-2020-24386 |
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Applikationen: |
dovecot |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202101-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Dovecot: Multiple vulnerabilities Date: January 10, 2021 Bugs: #763525 ID: 202101-01
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Synopsis ========
Multiple vulnerabilities have been found in Dovecot, the worst of which could allow remote attackers to cause a Denial of Service condition.
Background ==========
Dovecot is an open source IMAP and POP3 email server.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/dovecot < 2.3.13 >= 2.3.13
Description ===========
Multiple vulnerabilities have been discovered in Dovecot. Please review the CVE identifiers referenced below for details.
Impact ======
A remote attacker could send a specially crafted mail or send a specially crafted IMAP command possibly resulting in a Denial of Service condition or an authenticated remote attacker might be able to discover the file system directory structure and access other users' emails.
Workaround ==========
The information disclosure vulnerability can be mitigated by disabling IMAP hibernation feature which isn't enabled by default.
Resolution ==========
All Dovecot users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/dovecot-2.3.13"
References ==========
[ 1 ] CVE-2020-24386 https://nvd.nist.gov/vuln/detail/CVE-2020-24386 [ 2 ] CVE-2020-25275 https://nvd.nist.gov/vuln/detail/CVE-2020-25275
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202101-01
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 2021 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.
https://creativecommons.org/licenses/by-sa/2.5
--Apple-Mail=_5FA05A54-FF53-44D6-A245-709D8A4AF0D3 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii
<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><pre style="word-wrap: break-word; white-space: pre-wrap;" class="">- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202101-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <a href="https://security.gentoo.org/" class="">https://security.gentoo.org/</a> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Dovecot: Multiple vulnerabilities Date: January 10, 2021 Bugs: #763525 ID: 202101-01
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis ========
Multiple vulnerabilities have been found in Dovecot, the worst of which could allow remote attackers to cause a Denial of Service condition.
Background ==========
Dovecot is an open source IMAP and POP3 email server.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/dovecot < 2.3.13 >= 2.3.13
Description ===========
Multiple vulnerabilities have been discovered in Dovecot. Please review the CVE identifiers referenced below for details.
Impact ======
A remote attacker could send a specially crafted mail or send a specially crafted IMAP command possibly resulting in a Denial of Service condition or an authenticated remote attacker might be able to discover the file system directory structure and access other users' emails.
Workaround ==========
The information disclosure vulnerability can be mitigated by disabling IMAP hibernation feature which isn't enabled by default.
Resolution ==========
All Dovecot users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/dovecot-2.3.13"
References ==========
[ 1 ] CVE-2020-24386 <a href="https://nvd.nist.gov/vuln/detail/CVE-2020-24386" class="">https://nvd.nist.gov/vuln/detail/CVE-2020-24386</a> [ 2 ] CVE-2020-25275 <a href="https://nvd.nist.gov/vuln/detail/CVE-2020-25275" class="">https://nvd.nist.gov/vuln/detail/CVE-2020-25275</a>
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
<a href="https://security.gentoo.org/glsa/202101-01" class="">https://security.gentoo.org/glsa/202101-01</a>
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 <a href="mailto:security@gentoo.org" class="">security@gentoo.org</a> or alternatively, you may file a bug at <a href="https://bugs.gentoo.org" class="">https://bugs.gentoo.org</a>.
License =======
Copyright 2021 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.
<a href="https://creativecommons.org/licenses/by-sa/2.5" class="">https://creativecommons.org/licenses/by-sa/2.5</a></pre><div class=""><br class=""></div></body></html> --Apple-Mail=_5FA05A54-FF53-44D6-A245-709D8A4AF0D3--
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