A libetpan security update has been released for Fedora 31.

SECURITY: Fedora 31 Update: libetpan-1.9.3-3.fc31

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Fedora Update Notification
FEDORA-2020-44e52ef729
2020-08-19 01:01:08.078920
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Name : libetpan
Product : Fedora 31
Version : 1.9.3
Release : 3.fc31
URL :   http://www.etpan.org/
Summary : Portable, efficient middle-ware for different kinds of mail access
Description :
The purpose of this mail library is to provide a portable, efficient middle-ware
for different kinds of mail access. When using the drivers interface, the
interface is the same for all kinds of mail access, remote and local mailboxes.

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Update Information:

A security flaw was found on libetpan which may allow malicious attacker to
inject additional responses or mimic whole sessions. This vulnerability is now
assined as CVE-2020-15953. This new rpm should fix this issue.
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ChangeLog:

* Mon Aug 10 2020 Mamoru TASAKA - 1.9.3-3
- Address CVE-2020-15953 (bug 1861068)
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References:

[ 1 ] Bug #1861071 - CVE-2020-15953 libetpan: response injection via STARTTLS in IMAP [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1861071
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-44e52ef729' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

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
  https://fedoraproject.org/keys