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Vulnerability of Mozilla NSS: information disclosure via Cache Side-channel

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Cache Side-channel of Mozilla NSS, in order to obtain sensitive information.
Vulnerable systems: Debian, NSS, openSUSE Leap, Oracle Communications, RHEL, ROX, RuggedSwitch, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 2/4.
Creation date: 03/12/2018.
Références of this weakness: 1485864, cpuapr2019, CVE-2018-12404, DLA-1704-1, DLA-2388-1, openSUSE-SU-2018:4117-1, openSUSE-SU-2018:4283-1, openSUSE-SU-2019:0183-1, openSUSE-SU-2019:1758-1, RHSA-2019:2237-01, SSA:2018-337-01, SSA-379803, SUSE-SU-2018:4235-1, SUSE-SU-2018:4236-1, USN-3850-1, USN-3850-2, VIGILANCE-VUL-27938.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Cache Side-channel of Mozilla NSS, in order to obtain sensitive information.
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This threat alert impacts software or systems such as Debian, NSS, openSUSE Leap, Oracle Communications, RHEL, ROX, RuggedSwitch, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer vulnerability bulletin is medium.

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

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

Solutions for this threat 

Mozilla NSS: version 3.40.1.
The version 3.40.1 is fixed:
  https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS
  https://ftp.mozilla.org/pub/security/nss/releases/

Mozilla NSS: version 3.36.6.
The version 3.36.6 is fixed:
  https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS
  https://ftp.mozilla.org/pub/security/nss/releases/

Debian 8: new nss packages.
New packages are available:
  Debian 8: nss 2:3.26-1+debu8u4

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

openSUSE Leap 15.0: new MozillaFirefox packages.
New packages are available:
  openSUSE Leap 15.0: MozillaFirefox 60.8.0-lp150.3.62.1, mozilla-nss 3.41.1-lp150.2.20.1

openSUSE Leap 15.0: new mozilla-nspr packages.
New packages are available:
  openSUSE Leap 15.0: mozilla-nspr 4.20-lp150.2.3.1, mozilla-nss 3.40.1-lp150.2.10.2

openSUSE Leap 15.0: new mozilla-nss packages.
New packages are available:
  openSUSE Leap 15.0: mozilla-nss 3.41.1-lp150.2.16.1

openSUSE Leap: new mozilla-nss packages.
New packages are available:
  openSUSE Leap 42.3: mozilla-nss 3.36.6-54.1
  openSUSE Leap 15.0: mozilla-nss 3.36.6-lp150.2.6.1

Oracle Communications: CPU of April 2019.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2518758.1
  https://support.oracle.com/rs?type=doc&id=2518763.1
  https://support.oracle.com/rs?type=doc&id=2522151.1
  https://support.oracle.com/rs?type=doc&id=2519787.1
  https://support.oracle.com/rs?type=doc&id=2522126.1
  https://support.oracle.com/rs?type=doc&id=2522123.1
  https://support.oracle.com/rs?type=doc&id=2518753.1
  https://support.oracle.com/rs?type=doc&id=2522121.1
  https://support.oracle.com/rs?type=doc&id=2528862.1
  https://support.oracle.com/rs?type=doc&id=2518754.1

RHEL 7: new nss packages.
New packages are available:
  RHEL 7: nspr 4.21.0-1.el7, nss 3.44.0-4.el7

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

Slackware: new mozilla-nss packages.
New packages are available:
  Slackware 14.0: mozilla-nss 3.23-*-1_slack14.0
  Slackware 14.1: mozilla-nss 3.40.1-*-1_slack14.1
  Slackware 14.2: mozilla-nss 3.40.1-*-1_slack14.2

SUSE LE 12: new MozillaFirefox packages.
New packages are available:
  SUSE LE 12 RTM: MozillaFirefox 60.4.0esr-109.55.1, mozilla-nspr 4.20-19.6.1, mozilla-nss 3.40.1-58.18.1
  SUSE LE 12 SP1: MozillaFirefox 60.4.0esr-109.55.1, mozilla-nspr 4.20-19.6.1, mozilla-nss 3.40.1-58.18.1
  SUSE LE 12 SP2: MozillaFirefox 60.4.0esr-109.55.1, mozilla-nspr 4.20-19.6.1, mozilla-nss 3.40.1-58.18.1
  SUSE LE 12 SP3: MozillaFirefox 60.4.0esr-109.55.1, mozilla-nspr 4.20-19.6.1, mozilla-nss 3.40.1-58.18.1
  SUSE LE 12 SP4: MozillaFirefox 60.4.0esr-109.55.1, mozilla-nspr 4.20-19.6.1, mozilla-nss 3.40.1-58.18.1

SUSE LE 15: new MozillaFirefox packages.
New packages are available:
  SUSE LE 15 RTM: MozillaFirefox 60.4.0-3.21.1, mozilla-nspr 4.20-3.3.2, mozilla-nss 3.40.1-3.7.2

Ubuntu: new libnss3 packages.
New packages are available:
  Ubuntu 18.10: libnss3 2:3.36.1-1ubuntu1.1
  Ubuntu 18.04 LTS: libnss3 2:3.35-2ubuntu2.1
  Ubuntu 16.04 LTS: libnss3 2:3.28.4-0ubuntu0.16.04.4
  Ubuntu 14.04 LTS: libnss3 2:3.28.4-0ubuntu0.14.04.4
  Ubuntu 12.04 ESM: libnss3 2:3.28.4-0ubuntu0.12.04.2
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