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Vulnerability of Mozilla NSS: buffer overflow via NSC_EncryptUpdate

Synthesis of the vulnerability 

An attacker can trigger a buffer overflow via NSC_EncryptUpdate() of Mozilla NSS, in order to trigger a denial of service, and possibly to run code.
Impacted systems: Debian, Fedora, McAfee Web Gateway, Firefox, NSS, Thunderbird, openSUSE Leap, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this alert: 2/4.
Creation date: 26/11/2019.
Références of this alert: CVE-2019-11745, DLA-2008-1, DSA-4579-1, FEDORA-2019-3f6ab3b846, FEDORA-2019-8fbc65ef9e, MFSA-2019-36, MFSA-2019-37, MFSA-2019-38, openSUSE-SU-2020:0002-1, openSUSE-SU-2020:0003-1, openSUSE-SU-2020:0008-1, RHSA-2019:4114-01, RHSA-2019:4152-01, RHSA-2019:4190-01, RHSA-2020:0243-01, RHSA-2020:0466-01, RHSA-2020:1267-01, SSA:2019-337-01, SUSE-SU-2019:14260-1, SUSE-SU-2019:3337-1, SUSE-SU-2019:3339-1, SUSE-SU-2019:3347-1, SUSE-SU-2019:3395-1, USN-4203-1, USN-4203-2, USN-4216-1, USN-4241-1, VIGILANCE-VUL-30971.

Description of the vulnerability 

An attacker can trigger a buffer overflow via NSC_EncryptUpdate() of Mozilla NSS, in order to trigger a denial of service, and possibly to run code.
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This cybersecurity announce impacts software or systems such as Debian, Fedora, McAfee Web Gateway, Firefox, NSS, Thunderbird, openSUSE Leap, Solaris, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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

An attacker with a expert ability can exploit this computer weakness alert.

Solutions for this threat 

Mozilla NSS: version 3.47.1.
The version 3.47.1 is fixed:
  https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_47_1_RTM/src/

Mozilla NSS: version 3.44.3.
The version 3.44.3 is fixed:
  https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_44_3_RTM/src/

Mozilla NSS: patch for NSC_EncryptUpdate.
A patch is available:
  https://hg.mozilla.org/releases/mozilla-esr68/rev/ea1bc0fb2dda

Debian 10: new nss packages.
New packages are available:
  Debian 10: nss 2:3.42.1-1+deb10u2

Debian 8: new nss packages.
New packages are available:
  Debian 8: nss 2:3.26-1+debu8u7

Fedora 30: new nss packages.
New packages are available:
  Fedora 30: nss 3.47.1-4.fc30

Fedora 31: new nss packages.
New packages are available:
  Fedora 31: nss 3.47.1-1.fc31

Firefox: version 68.3.
The version 68.3 is fixed:
  https://www.mozilla.org/en-US/firefox/new/

Firefox: version 71.
The version 71 is fixed:
  https://www.mozilla.org/en-US/firefox/new/

McAfee Web Gateway: version 7.8.2.16.
The version 7.8.2.16 is fixed:
  https://www.mcafee.com/enterprise/en-us/downloads/my-products.html

openSUSE Leap 15.1: new MozillaFirefox packages.
New packages are available:
  openSUSE Leap 15.1: MozillaFirefox 68.3.0-lp151.2.21.1

openSUSE Leap 15.1: new mozilla-nspr packages.
New packages are available:
  openSUSE Leap 15.1: mozilla-nspr 4.23-lp151.2.6.1, mozilla-nss 3.47.1-lp151.2.9.1

openSUSE Leap 15.1: new MozillaThunderbird packages.
New packages are available:
  openSUSE Leap 15.1: MozillaThunderbird 68.3.0-lp151.2.19.1

Oracle Solaris: patch for third party software of Januray 2020 v1.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

RHEL 6.10: new nss-softokn packages.
New packages are available:
  RHEL 6.10: nss-softokn 3.44.0-6.el6_10

RHEL 6.6: new nss-softokn packages.
New packages are available:
  RHEL 6.6: nss-softokn 3.14.3-23.el6_6

RHEL 7.5: new nss-softokn packages.
New packages are available:
  RHEL 7.5: nss-softokn 3.36.0-6.el7_5

RHEL 7.7: new nss packages.
New packages are available:
  RHEL 7.7: nss 3.44.0-7.el7_7

RHEL 8.0: new nss packages.
New packages are available:
  RHEL 8.0: nss 3.44.0-8.el8_0

RHEL 8.1: new nss packages.
New packages are available:
  RHEL 8.1: nss 3.44.0-9.el8_1

Slackware: new mozilla-firefox packages.
New packages are available:
  Slackware 14.2: mozilla-firefox 68.3.0esr-*-1_slack14.2

SUSE LE 11 SP4: new MozillaFirefox packages.
New packages are available:
  SUSE LE 11 SP4: MozillaFirefox 68.3.0-78.54.1, mozilla-nspr 4.23-29.9.1, mozilla-nss 3.47.1-38.12.1

SUSE LE 12: new MozillaFirefox packages.
New packages are available:
  SUSE LE 12 SP1: MozillaFirefox 68.3.0-109.98.1
  SUSE LE 12 SP2: MozillaFirefox 68.3.0-109.98.1
  SUSE LE 12 SP3: MozillaFirefox 68.3.0-109.98.1
  SUSE LE 12 SP4: MozillaFirefox 68.3.0-109.98.1
  SUSE LE 12 SP5: MozillaFirefox 68.3.0-109.98.1

SUSE LE 15: new MozillaFirefox packages.
New packages are available:
  SUSE LE 15 RTM: MozillaFirefox 68.3.0-3.62.2
  SUSE LE 15 SP1: MozillaFirefox 68.3.0-3.62.2

SUSE LE 15: new mozilla-nspr, mozilla-nss packages.
New packages are available:
  SUSE LE 15 RTM: mozilla-nspr 4.23-3.9.1, mozilla-nss 3.47.1-3.22.1
  SUSE LE 15 SP1: mozilla-nspr 4.23-3.9.1, mozilla-nss 3.47.1-3.22.1

SUSE LE 15: new MozillaThunderbird packages.
New packages are available:
  SUSE LE 15 RTM: MozillaThunderbird 68.3.0-3.61.2
  SUSE LE 15 SP1: MozillaThunderbird 68.3.0-3.61.2

Thunderbird: version 68.3.
The version 68.3 is fixed:
  https://www.mozilla.org/

Ubuntu: new firefox packages.
New packages are available:
  Ubuntu 19.10: firefox 71.0+build5-0ubuntu0.19.10.1
  Ubuntu 19.04: firefox 71.0+build5-0ubuntu0.19.04.1
  Ubuntu 18.04 LTS: firefox 71.0+build5-0ubuntu0.18.04.1

Ubuntu: new libnss3 packages.
New packages are available:
  Ubuntu 19.10: libnss3 2:3.45-1ubuntu2.1
  Ubuntu 19.04: libnss3 2:3.42-1ubuntu2.3
  Ubuntu 18.04 LTS: libnss3 2:3.35-2ubuntu2.5
  Ubuntu 16.04 LTS: libnss3 2:3.28.4-0ubuntu0.16.04.8
  Ubuntu 14.04 ESM: libnss3 2:3.28.4-0ubuntu0.14.04.5+esm2
  Ubuntu 12.04 ESM: libnss3 2:3.28.4-0ubuntu0.12.04.5

Ubuntu: new thunderbird packages.
New packages are available:
  Ubuntu 19.10: thunderbird 1:68.4.1+build1-0ubuntu0.19.10.1
  Ubuntu 18.04 LTS: thunderbird 1:68.4.1+build1-0ubuntu0.18.04.1
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