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Vulnerability of FriBidi: buffer overflow via Unicode Isolate Directional Characters

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via Unicode Isolate Directional Characters of FriBidi, in order to trigger a denial of service, and possibly to run code.
Impacted systems: Debian, Fedora, openSUSE Leap, RHEL, SLES, Ubuntu.
Severity of this alert: 3/4.
Creation date: 08/11/2019.
Références of this alert: CVE-2019-18397, DSA-4561-1, FEDORA-2019-533a72fec5, FEDORA-2019-7075bc4ff8, openSUSE-SU-2021:0763-1, RHSA-2019:4326-01, RHSA-2019:4361-01, RHSA-2020:0291-01, SUSE-SU-2021:1655-1, USN-4179-1, VIGILANCE-VUL-30809.

Description of the vulnerability 

An attacker can trigger a buffer overflow via Unicode Isolate Directional Characters of FriBidi, in order to trigger a denial of service, and possibly to run code.
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This threat note impacts software or systems such as Debian, Fedora, openSUSE Leap, RHEL, SLES, Ubuntu.

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

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

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

Solutions for this threat 

Debian 10: new fribidi packages.
New packages are available:
  Debian 10: fribidi 1.0.5-3.1+deb10u1

Fedora: new fribidi packages.
New packages are available:
  Fedora 30: fribidi 1.0.5-5.fc30
  Fedora 31: fribidi 1.0.5-5.fc31

openSUSE Leap 15.2: new fribidi packages.
New packages are available:
  openSUSE Leap 15.2: fribidi 1.0.5-lp152.2.3.1

RHEL 7.7: new fribidi packages.
New packages are available:
  RHEL 7.7: fribidi 1.0.2-1.el7_7.1

RHEL 8.0: new fribidi packages.
New packages are available:
  RHEL 8.0: fribidi 1.0.4-6.el8_0.1

RHEL 8.1: new fribidi packages.
New packages are available:
  RHEL 8.1: fribidi 1.0.4-7.el8_1

SUSE LE 15 SP2-3: new fribidi packages.
New packages are available:
  SUSE LE 15 SP2: fribidi 1.0.5-3.3.1
  SUSE LE 15 SP3: fribidi 1.0.5-3.3.1

Ubuntu: new libfribidi0 packages.
New packages are available:
  Ubuntu 19.10: libfribidi0 1.0.5-3.1ubuntu0.19.10.1
  Ubuntu 19.04: libfribidi0 1.0.5-3.1ubuntu0.19.04.1

Wind River Linux: version 10.18.44.13.
The version 10.18.44.13 is fixed:
  https://support2.windriver.com/
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