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Vulnerability of Mozilla Firefox, Google Chrome: buffer overflow via SCTP

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via SCTP in Mozilla Firefox and Google Chrome, in order to trigger a denial of service, and possibly to run code.
Vulnerable systems: Debian, Fedora, Chrome, Edge Chromium, Firefox, openSUSE Leap, Opera, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 2/4.
Creation date: 06/05/2020.
Références of this weakness: ADV200002, CERTFR-2020-AVI-269, CVE-2020-6831, DLA-2205-1, DLA-2206-1, DSA-4678-1, DSA-4683-1, DSA-4714-1, DSA-4714-2, DSA-4714-3, FEDORA-2020-3c52435c2d, FEDORA-2020-9e2c5c8f1e, FEDORA-2020-f389eab5d1, MFSA2020-16, MFSA2020-17, MFSA2020-18, openSUSE-SU-2020:0620-1, openSUSE-SU-2020:0621-1, openSUSE-SU-2020:0643-1, openSUSE-SU-2020:0648-1, openSUSE-SU-2020:0709-1, openSUSE-SU-2020:0917-1, RHSA-2020:2031-01, RHSA-2020:2032-01, RHSA-2020:2033-01, RHSA-2020:2036-01, RHSA-2020:2037-01, RHSA-2020:2046-01, RHSA-2020:2047-01, RHSA-2020:2048-01, RHSA-2020:2049-01, RHSA-2020:2050-01, RHSA-2020:2064-01, SSA:2020-126-01, SUSE-SU-2020:1209-1, SUSE-SU-2020:1218-1, SUSE-SU-2020:1225-1, SUSE-SU-2020:14359-1, USN-4353-1, USN-4353-2, USN-4373-1, VIGILANCE-VUL-32186.

Description of the vulnerability 

An attacker can trigger a buffer overflow via SCTP in Mozilla Firefox and Google Chrome, in order to trigger a denial of service, and possibly to run code.
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This cybersecurity threat impacts software or systems such as Debian, Fedora, Chrome, Edge Chromium, Firefox, openSUSE Leap, Opera, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat note is medium.

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

An attacker with a expert ability can exploit this security threat.

Solutions for this threat 

Google Chrome: version 81.0.4044.138.
The version 81.0.4044.138 is fixed.

Mozilla Firefox: version 76.
The version 76 is fixed:
  https://www.mozilla.org/fr/firefox/all/#product-desktop-release

Mozilla Firefox: version ESR 68.8.
The version ESR 68.8 is fixed:
  https://www.mozilla.org/fr/firefox/all/#product-desktop-esr

Debian 10: new chromium packages.
New packages are available:
  Debian 10: chromium 83.0.4103.116-1~deb10u3

Debian 8: new firefox-esr packages.
New packages are available:
  Debian 8: firefox-esr 68.8.0esr-1~deb8u1

Debian 8: new thunderbird packages.
New packages are available:
  Debian 8: thunderbird 1:68.8.0-1~deb8u1

Debian 9, 10: new firefox-esr packages.
New packages are available:
  Debian 9: firefox-esr 68.8.0esr-1~deb9u1
  Debian 10: firefox-esr 68.8.0esr-1~deb10u1

Debian 9, 10: new thunderbird packages.
New packages are available:
  Debian 9: thunderbird 1:68.8.0-1~deb9u1
  Debian 10: thunderbird 1:68.8.0-1~deb10u1

Fedora 30-32: new firefox packages.
New packages are available:
  Fedora 30: firefox 76.0-2.fc30
  Fedora 31: firefox 76.0-2.fc31
  Fedora 32: firefox 76.0-2.fc32, nss 3.51.1-1.fc32

Microsoft Edge Chromium: version 81.0.416.72.
The version 81.0.416.72 is fixed:
  https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV200002

openSUSE Leap 15.1: new chromium packages.
New packages are available:
  openSUSE Leap 15.1: chromium 81.0.4044.138-lp151.2.88.1

openSUSE Leap 15.1: new MozillaFirefox packages.
New packages are available:
  openSUSE Leap 15.1: MozillaFirefox 68.8.0-lp151.2.45.1

openSUSE Leap 15.1: new MozillaThunderbird packages.
New packages are available:
  openSUSE Leap 15.1: MozillaThunderbird 68.8.0-lp151.2.38.2

openSUSE Leap 15.1: new opera packages.
New packages are available:
  openSUSE Leap 15.1: opera 68.0.3618.104-lp151.2.18.1

openSUSE Leap 15.2: new opera packages.
New packages are available:
  openSUSE Leap 15.2: opera 68.0.3618.104-lp152.2.6.1

Opera: version 68.0.3618.104.
The version 68.0.3618.104 is fixed:
  https://www.opera.com/fr/computer

RHEL 6-8: new firefox packages.
New packages are available:
  RHEL 6.10: firefox 68.8.0-1.el6_10
  RHEL 7.8: firefox 68.8.0-1.el7_8
  RHEL 8.0: firefox 68.8.0-1.el8_0
  RHEL 8.1: firefox 68.8.0-1.el8_1
  RHEL 8.2: firefox 68.8.0-1.el8_2

RHEL 6-8: new thunderbird packages.
New packages are available:
  RHEL 6.10: thunderbird 68.8.0-1.el6_10
  RHEL 7.8: thunderbird 68.8.0-1.el7_8
  RHEL 8.0: thunderbird 68.8.0-1.el8_0
  RHEL 8.1: thunderbird 68.8.0-1.el8_1
  RHEL 8.2: thunderbird 68.8.0-1.el8_2

RHEL 6: new chromium-browser packages.
New packages are available:
  RHEL 6.10: chromium-browser 81.0.4044.138-1.el6_10

Slackware: new mozilla-firefox packages.
New packages are available:
  Slackware 14.2: mozilla-firefox 68.8.0esr-*-1_slack14.2

SUSE LE 11 SP4: new MozillaFirefox packages.
New packages are available:
  SUSE LE 11 SP4: MozillaFirefox 68.8.0-78.73.1

SUSE LE 12: new MozillaFirefox packages.
New packages are available:
  SUSE LE 12 SP1: MozillaFirefox 68.8.0-109.119.1
  SUSE LE 12 SP2: MozillaFirefox 68.8.0-109.119.1
  SUSE LE 12 SP3: MozillaFirefox 68.8.0-109.119.1
  SUSE LE 12 SP4: MozillaFirefox 68.8.0-109.119.1
  SUSE LE 12 SP5: MozillaFirefox 68.8.0-109.119.1

SUSE LE 15: new MozillaThunderbird packages.
New packages are available:
  SUSE LE 15 SP1: MozillaThunderbird 68.8.0-3.80.2
  SUSE LE 15 SP2: MozillaThunderbird 68.8.0-3.80.2

SUSE LE 15 SP1: new chromium packages.
New packages are available:
  SUSE LE 15 SP1: chromium 81.0.4044.138-bp151.3.82.2

SUSE LE 15 SP1: new MozillaFirefox packages.
New packages are available:
  SUSE LE 15 SP1: MozillaFirefox 68.8.0-3.87.1

Ubuntu: new firefox packages.
New packages are available:
  Ubuntu 20.04 LTS: firefox 76.0.1+build1-0ubuntu0.20.04.1
  Ubuntu 19.10: firefox 76.0.1+build1-0ubuntu0.19.10.1
  Ubuntu 18.04 LTS: firefox 76.0.1+build1-0ubuntu0.18.04.1
  Ubuntu 16.04 LTS: firefox 76.0.1+build1-0ubuntu0.16.04.1

Ubuntu: new thunderbird packages.
New packages are available:
  Ubuntu 20.04 LTS: thunderbird 1:68.8.0+build2-0ubuntu0.20.04.2
  Ubuntu 19.10: thunderbird 1:68.8.0+build2-0ubuntu0.19.10.2
  Ubuntu 18.04 LTS: thunderbird 1:68.8.0+build2-0ubuntu0.18.04.2
  Ubuntu 16.04 LTS: thunderbird 1:68.8.0+build2-0ubuntu0.16.04.2
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