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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, Junos Space, McAfee Web Gateway, Firefox, NSS, Thunderbird, openSUSE Leap, Solaris, RHEL, ROX, RuggedSwitch, 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, DLA-2388-1, DSA-4579-1, FEDORA-2019-3f6ab3b846, FEDORA-2019-8fbc65ef9e, JSA11110, 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, RHSA-2020:1345-01, RHSA-2020:1461-01, SSA:2019-337-01, SSA-379803, 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, SUSE-SU-2020:14418-1, 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, Junos Space, McAfee Web Gateway, Firefox, NSS, Thunderbird, openSUSE Leap, Solaris, RHEL, ROX, RuggedSwitch, 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

Debian 9: new nss packages.
New packages are available:
  Debian 9: nss 2:3.26.2-1.1+deb9u2

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/

Juniper Junos Space: version 20.3R1.
The version 20.3R1 is fixed:
  https://www.juniper.net/support/downloads/

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 (13/01/2020).
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

Oracle Solaris: patch for third party software of July 2020 v2.
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 7.4: new nss-softokn packages.
New packages are available:
  RHEL 7.4: nss-softokn 3.28.3-9.el7_4

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

RHEL 7.6: new nss-softokn packages.
New packages are available:
  RHEL 7.6: nss-softokn 3.36.0-6.el7_6

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

RUGGEDCOM ROX: fixed versions for Mozilla NSS.
Fixed versions are indicated in information sources.

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 11 SP4: new mozilla-nspr/mozilla-nss packages.
New packages are available:
  SUSE LE 11 SP4: mozilla-nspr 4.25-29.12.2, mozilla-nss 3.53.1-38.23.1

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

Wind River Linux: version 10.19.45.12.
The version 10.19.45.12 is fixed:
  https://support2.windriver.com/index.php?page=cve&on=list&show=50&product_id=1&product_version%5B0%5D=24&id_status%5B0%5D=4&cve_id_filter=&s=&submit=&order_by=cve_modified_date&order_way=desc#list
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