--------------------------------------------------------------------------------Fedora Update Notification
FEDORA-2020-cd8b8f887b
2020-09-03 16:25:10.755647
--------------------------------------------------------------------------------Name        : dovecot
Product     : Fedora 31
Version     : 2.3.11.3
Release     : 4.fc31
URL         : https://www.dovecot.org/
Summary     : Secure imap and pop3 server
Description :
Dovecot is an IMAP server for Linux/UNIX-like systems, written with security
primarily in mind.  It also contains a small POP3 server.  It supports mail
in either of maildir or mbox formats.

The SQL drivers and authentication plug-ins are in their subpackages.

--------------------------------------------------------------------------------Update Information:

    CVE-2020-12100: Parsing mails with a large number of MIME parts could
have resulted in excessive CPU usage or a crash due to running out of
stack memory.     CVE-2020-12673: Dovecot's NTLM implementation does not
correctly check       message buffer size, which leads to reading past
allocation which can       lead to crash.     CVE-2020-10967: lmtp/submission:
Issuing the RCPT command with an       address that has the empty quoted string
as local-part causes the lmtp       service to crash.     CVE-2020-12674:
Dovecot's RPA mechanism implementation accepts       zero-length message, which
leads to assert-crash later on.
--------------------------------------------------------------------------------ChangeLog:

* Wed Aug 26 2020 Michal Hlavinka  - 1:2.3.11.3-4
- fix FTBFS on 32bit systems
* Mon Aug 17 2020 Jeff Law  - 1:2.3.11.3-2
- Disable LTO
* Sat Aug 15 2020 Michal Hlavinka  - 1:2.3.11.3-1
- CVE-2020-12100: Parsing mails with a large number of MIME parts could
  have resulted in excessive CPU usage or a crash due to running out of
  stack memory.
- CVE-2020-12673: Dovecot's NTLM implementation does not correctly check
  message buffer size, which leads to reading past allocation which can
  lead to crash.
- CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an
  address that has the empty quoted string as local-part causes the lmtp
  service to crash.
- CVE-2020-12674: Dovecot's RPA mechanism implementation accepts
  zero-length message, which leads to assert-crash later on.
* Sat Aug  1 2020 Fedora Release Engineering  - 1:2.3.10.1-3
- Second attempt - Rebuilt for
  https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
* Mon Jul 27 2020 Fedora Release Engineering  - 1:2.3.10.1-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
--------------------------------------------------------------------------------References:

  [ 1 ] Bug #1868539 - CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1868539
  [ 2 ] Bug #1868540 - CVE-2020-12673 dovecot: Out of bound reads in dovecot NTLM implementation [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1868540
  [ 3 ] Bug #1868541 - CVE-2020-12674 dovecot: Crash due to assert in RPA implementation [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1868541
--------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-cd8b8f887b' at the command
line. For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
--------------------------------------------------------------------------------_______________________________________________
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List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/

Fedora 31: dovecot 2020-cd8b8f887b

September 3, 2020
CVE-2020-12100: Parsing mails with a large number of MIME parts could have resulted in excessive CPU usage or a crash due to running out of stack memory

Summary

Dovecot is an IMAP server for Linux/UNIX-like systems, written with security

primarily in mind. It also contains a small POP3 server. It supports mail

in either of maildir or mbox formats.

The SQL drivers and authentication plug-ins are in their subpackages.

CVE-2020-12100: Parsing mails with a large number of MIME parts could

have resulted in excessive CPU usage or a crash due to running out of

stack memory. CVE-2020-12673: Dovecot's NTLM implementation does not

correctly check message buffer size, which leads to reading past

allocation which can lead to crash. CVE-2020-10967: lmtp/submission:

Issuing the RCPT command with an address that has the empty quoted string

as local-part causes the lmtp service to crash. CVE-2020-12674:

Dovecot's RPA mechanism implementation accepts zero-length message, which

leads to assert-crash later on.

* Wed Aug 26 2020 Michal Hlavinka - 1:2.3.11.3-4

- fix FTBFS on 32bit systems

* Mon Aug 17 2020 Jeff Law - 1:2.3.11.3-2

- Disable LTO

* Sat Aug 15 2020 Michal Hlavinka - 1:2.3.11.3-1

- CVE-2020-12100: Parsing mails with a large number of MIME parts could

have resulted in excessive CPU usage or a crash due to running out of

stack memory.

- CVE-2020-12673: Dovecot's NTLM implementation does not correctly check

message buffer size, which leads to reading past allocation which can

lead to crash.

- CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an

address that has the empty quoted string as local-part causes the lmtp

service to crash.

- CVE-2020-12674: Dovecot's RPA mechanism implementation accepts

zero-length message, which leads to assert-crash later on.

* Sat Aug 1 2020 Fedora Release Engineering - 1:2.3.10.1-3

- Second attempt - Rebuilt for

https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild

* Mon Jul 27 2020 Fedora Release Engineering - 1:2.3.10.1-2

- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild

[ 1 ] Bug #1868539 - CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1868539

[ 2 ] Bug #1868540 - CVE-2020-12673 dovecot: Out of bound reads in dovecot NTLM implementation [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1868540

[ 3 ] Bug #1868541 - CVE-2020-12674 dovecot: Crash due to assert in RPA implementation [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1868541

su -c 'dnf upgrade --advisory FEDORA-2020-cd8b8f887b' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

package-announce mailing list -- package-announce@lists.fedoraproject.org

To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org

Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/

List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines

List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/

FEDORA-2020-cd8b8f887b 2020-09-03 16:25:10.755647 Product : Fedora 31 Version : 2.3.11.3 Release : 4.fc31 URL : https://www.dovecot.org/ Summary : Secure imap and pop3 server Description : Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in either of maildir or mbox formats. The SQL drivers and authentication plug-ins are in their subpackages. CVE-2020-12100: Parsing mails with a large number of MIME parts could have resulted in excessive CPU usage or a crash due to running out of stack memory. CVE-2020-12673: Dovecot's NTLM implementation does not correctly check message buffer size, which leads to reading past allocation which can lead to crash. CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an address that has the empty quoted string as local-part causes the lmtp service to crash. CVE-2020-12674: Dovecot's RPA mechanism implementation accepts zero-length message, which leads to assert-crash later on. * Wed Aug 26 2020 Michal Hlavinka - 1:2.3.11.3-4 - fix FTBFS on 32bit systems * Mon Aug 17 2020 Jeff Law - 1:2.3.11.3-2 - Disable LTO * Sat Aug 15 2020 Michal Hlavinka - 1:2.3.11.3-1 - CVE-2020-12100: Parsing mails with a large number of MIME parts could have resulted in excessive CPU usage or a crash due to running out of stack memory. - CVE-2020-12673: Dovecot's NTLM implementation does not correctly check message buffer size, which leads to reading past allocation which can lead to crash. - CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an address that has the empty quoted string as local-part causes the lmtp service to crash. - CVE-2020-12674: Dovecot's RPA mechanism implementation accepts zero-length message, which leads to assert-crash later on. * Sat Aug 1 2020 Fedora Release Engineering - 1:2.3.10.1-3 - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild * Mon Jul 27 2020 Fedora Release Engineering - 1:2.3.10.1-2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild [ 1 ] Bug #1868539 - CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=1868539 [ 2 ] Bug #1868540 - CVE-2020-12673 dovecot: Out of bound reads in dovecot NTLM implementation [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=1868540 [ 3 ] Bug #1868541 - CVE-2020-12674 dovecot: Crash due to assert in RPA implementation [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=1868541 su -c 'dnf upgrade --advisory FEDORA-2020-cd8b8f887b' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at package-announce mailing list -- package-announce@lists.fedoraproject.org To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/

Change Log

References

Update Instructions

Severity
Product : Fedora 31
Version : 2.3.11.3
Release : 4.fc31
URL : https://www.dovecot.org/
Summary : Secure imap and pop3 server

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