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Vulnerability of Cyrus IMAP: buffer overflow via Httpd Daemon

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via Httpd Daemon of Cyrus IMAP, in order to trigger a denial of service, and possibly to run code.
Vulnerable products: Debian, Fedora, RHEL, Ubuntu.
Severity of this weakness: 3/4.
Creation date: 07/06/2019.
Références of this bulletin: CVE-2019-11356, DSA-4458-1, FEDORA-2019-309f559057, FEDORA-2019-f0435555ac, RHSA-2019:1771-01, USN-4566-1, VIGILANCE-VUL-29484.

Description of the vulnerability 

An attacker can trigger a buffer overflow via Httpd Daemon of Cyrus IMAP, in order to trigger a denial of service, and possibly to run code.
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This vulnerability bulletin impacts software or systems such as Debian, Fedora, RHEL, Ubuntu.

Our Vigil@nce team determined that the severity of this security note is important.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this cybersecurity note.

Solutions for this threat 

Debian 9: new cyrus-imapd packages.
New packages are available:
  Debian 9: cyrus-imapd 2.5.10-3+deb9u1

Fedora: new cyrus-imapd packages.
New packages are available:
  Fedora 29: cyrus-imapd 3.0.10-1.fc29
  Fedora 30: cyrus-imapd 3.0.10-1.fc30

RHEL 8.0: new cyrus-imapd packages.
New packages are available:
  RHEL 8: cyrus-imapd 3.0.7-15.el8_0.1

Ubuntu 18.04: new cyrus packages.
New packages are available:
  Ubuntu 18.04 LTS: cyrus 2.5.10-3ubuntu1.1
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