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Vulnerability of Linux kernel: information disclosure via mincore

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via mincore() of the Linux kernel, in order to obtain sensitive information.
Vulnerable products: Debian, Android OS, QRadar SIEM, Junos Space, Linux, openSUSE Leap, Solaris, RHEL, SUSE Linux Enterprise Desktop, SLES.
Severity of this weakness: 2/4.
Creation date: 08/01/2019.
Références of this bulletin: 1103505, 1901.01161, CERTFR-2019-AVI-277, CERTFR-2019-AVI-390, CERTFR-2019-AVI-451, CERTFR-2019-AVI-458, CERTFR-2019-AVI-592, CERTFR-2019-AVI-603, CERTFR-2019-AVI-621, CERTFR-2019-AVI-644, CERTFR-2020-AVI-056, cpujul2020, CVE-2019-5489, DLA-1823-1, DLA-1824-1, DSA-4465-1, JSA10993, openSUSE-SU-2019:1479-1, openSUSE-SU-2019:1570-1, openSUSE-SU-2019:1579-1, RHSA-2019:2029-01, RHSA-2019:2043-01, RHSA-2019:2473-01, RHSA-2019:2808-01, RHSA-2019:2809-01, RHSA-2019:2837-01, RHSA-2019:3309-01, RHSA-2019:3517-01, RHSA-2019:3967-01, RHSA-2019:4056-01, RHSA-2019:4057-01, RHSA-2019:4058-01, RHSA-2019:4159-01, RHSA-2019:4164-01, RHSA-2019:4255-01, RHSA-2020:0204-01, SUSE-SU-2019:14089-1, SUSE-SU-2019:1527-1, SUSE-SU-2019:1529-1, SUSE-SU-2019:1530-1, SUSE-SU-2019:1532-1, SUSE-SU-2019:1533-1, SUSE-SU-2019:1534-1, SUSE-SU-2019:1535-1, SUSE-SU-2019:1536-1, SUSE-SU-2019:1550-1, SUSE-SU-2019:1692-1, SUSE-SU-2019:2430-1, VIGILANCE-VUL-28182.

Description of the vulnerability 

An attacker can bypass access restrictions to data via mincore() of the Linux kernel, in order to obtain sensitive information.
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This cybersecurity threat impacts software or systems such as Debian, Android OS, QRadar SIEM, Junos Space, Linux, openSUSE Leap, Solaris, RHEL, SUSE Linux Enterprise Desktop, SLES.

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 user shell.

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

Solutions for this threat 

Linux kernel: patch for mincore.
A patch is indicated in information sources.

Debian 8: new linux packages.
New packages are available:
  Debian 8: linux 3.16.68-2

Debian 9: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.168-1+deb9u3~deb8u1

Debian 9: new linux packages.
New packages are available:
  Debian 9: linux 4.9.168-1+deb9u3

Google Android/Pixel: patch for September 2020.
A patch is indicated in information sources.

IBM QRadar SIEM: patch for Kernel.
A patch is indicated in information sources.

Junos Space: version 19.4R1.
The version 19.4R1 is fixed:
  https://www.juniper.net/support/downloads/

openSUSE Leap 15.0: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.64.1

openSUSE Leap 15.1: new kernel packages.
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.4.1

openSUSE Leap 42.3: new kernel packages.
New packages are available:
  openSUSE Leap 42.3: kernel 4.4.180-102.1

Oracle Solaris: CPU of July 2020.
A Critical Patch Update is available:
  https://support.oracle.com/rs?type=doc&id=2684942.1

RHEL 5: new kernel packages.
New packages are available:
  RHEL 5: kernel 2.6.18-439.el5

RHEL 6.5: new kernel packages.
New packages are available:
  RHEL 6.5: kernel 2.6.32-431.97.1.el6

RHEL 6.6: new kernel packages.
New packages are available:
  RHEL 6.0-6.10: kernel 2.6.32-504.82.1.el6

RHEL 6 MRG: new kernel-rt packages.
New packages are available:
  RHEL 6.0-6.10: kernel-rt 3.10.0-693.61.1.rt56.656.el6rt

RHEL 6: new kernel packages.
New packages are available:
  RHEL 6: kernel 2.6.32-754.18.2.el6

RHEL 7.2: new kernel packages.
New packages are available:
  RHEL 7.2: kernel 3.10.0-327.83.1.el7

RHEL 7.3: new kernel packages.
New packages are available:
  RHEL 7.3: kernel 3.10.0-514.71.1.el7

RHEL 7.4: new kernel packages.
New packages are available:
  RHEL 7.4: kernel 3.10.0-693.61.1.el7

RHEL 7.5: new kernel packages.
New packages are available:
  RHEL 7.0-7.7: kernel 3.10.0-862.44.2.el7

RHEL 7.6: new kernel packages.
New packages are available:
  RHEL 7: kernel 3.10.0-957.35.1.el7

RHEL 7: new kernel-alt packages.
New packages are available:
  RHEL 7: kernel-alt 4.14.0-115.12.1.el7a

RHEL 7: new kernel packages.
New packages are available:
  RHEL 7: kernel 3.10.0-1062.el7

RHEL 7: new kernel-rt packages.
New packages are available:
  RHEL 7: kernel-rt 3.10.0-1062.rt56.1022.el7

RHEL 8.0: new kernel packages.
New packages are available:
  RHEL 8.0: kernel 4.18.0-80.15.1.el8_0

RHEL 8: new kernel packages.
New packages are available:
  RHEL 8: kernel 4.18.0-147.el8

RHEL 8: new kernel-rt packages.
New packages are available:
  RHEL 8: kernel-rt 4.18.0-147.rt24.93.el8

SUSE LE 11 SP4: new kernel packages.
New packages are available:
  SUSE LE 11 SP4: kernel 3.0.101-108.95.2

SUSE LE 12 RTM: new kernel packages.
New packages are available:
  SUSE LE 12 RTM: kernel 3.12.61-52.154.1

SUSE LE 12 SP1: new kernel packages (18/06/2019).
New packages are available:
  SUSE LE 12 SP1: kernel 3.12.74-60.64.115.1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.114.1

SUSE LE 12 SP3: new kernel packages.
New packages are available:
  SUSE LE 12 SP3: kernel 4.4.180-94.97.1

SUSE LE 12 SP4: new kernel packages (18/06/2019).
New packages are available:
  SUSE LE 12 SP4: kernel 4.12.14-95.19.1

SUSE LE 15: new kernel packages.
New packages are available:
  SUSE LE 15 RTM: kernel 4.12.14-150.22.1

SUSE LE 15 SP1: new kernel packages.
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.4.1

SUSE LE 15 SP1: new kernel-source-rt packages.
New packages are available:
  SUSE LE 15 SP1: kernel-source-rt 4.12.14-14.8.1
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