The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Linux kernel: memory corruption via NFS Client

Synthesis of the vulnerability 

An attacker can trigger a memory corruption via NFS Client of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Debian, Tivoli Storage Manager, Linux, openSUSE Leap, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 10/09/2020.
Références of this computer vulnerability: 6417119, CERTFR-2020-AVI-585, CERTFR-2020-AVI-614, CERTFR-2020-AVI-625, CERTFR-2020-AVI-642, CERTFR-2020-AVI-668, CERTFR-2020-AVI-672, CERTFR-2020-AVI-678, CERTFR-2020-AVI-699, CERTFR-2020-AVI-719, CERTFR-2020-AVI-741, CERTFR-2020-AVI-764, CERTFR-2020-AVI-769, CERTFR-2020-AVI-776, CERTFR-2020-AVI-784, CERTFR-2020-AVI-823, CERTFR-2021-AVI-122, CERTFR-2021-AVI-149, CVE-2020-2521, CVE-2020-25212, DLA-2385-1, DLA-2420-1, DLA-2420-2, openSUSE-SU-2020:1586-1, openSUSE-SU-2020:1655-1, openSUSE-SU-2020:1682-1, openSUSE-SU-2020:1698-1, openSUSE-SU-2020:2112-1, openSUSE-SU-2021:0242-1, RHSA-2020:4279-01, RHSA-2020:5437-01, RHSA-2020:5441-01, RHSA-2021:0526-01, SSA:2020-295-01, SUSE-SU-2020:2879-1, SUSE-SU-2020:2904-1, SUSE-SU-2020:2905-1, SUSE-SU-2020:2906-1, SUSE-SU-2020:2907-1, SUSE-SU-2020:2908-1, SUSE-SU-2020:2981-1, SUSE-SU-2020:2999-1, SUSE-SU-2020:3014-1, SUSE-SU-2020:3230-1, SUSE-SU-2020:3281-1, SUSE-SU-2020:3484-1, SUSE-SU-2020:3491-1, SUSE-SU-2020:3501-1, SUSE-SU-2020:3503-1, SUSE-SU-2020:3532-1, SUSE-SU-2020:3544-1, SUSE-SU-2021:0354-1, USN-4525-1, USN-4527-1, USN-4578-1, USN-4752-1, VIGILANCE-VUL-33295.

Description of the vulnerability 

An attacker can trigger a memory corruption via NFS Client of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer vulnerability note impacts software or systems such as Debian, Tivoli Storage Manager, Linux, openSUSE Leap, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

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

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this cybersecurity announce.

Solutions for this threat 

Linux kernel: version 5.8.3.
The version 5.8.3 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.7.17.
The version 5.7.17 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.4.60.
The version 5.4.60 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.141.
The version 4.19.141 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.233.
The version 4.9.233 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.233.
The version 4.4.233 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

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

Debian 9: new linux-4.19 packages (28/09/2020).
New packages are available:
  Debian 9: linux-4.19 4.19.146-1~deb9u1

Debian 9: new linux packages.
New packages are available:
  Debian 9: linux 4.9.240-2

IBM Spectrum Protect Plus: patch for Linux Kernel.
A patch is indicated in information sources.

openSUSE Leap 15.1: new kernel packages (12/10/2020).
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.71.1

openSUSE Leap 15.1: new kernel packages (19/10/2020).
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.75.1

openSUSE Leap 15.2: new kernel packages (02/10/2020).
New packages are available:
  openSUSE Leap 15.2: kernel 5.3.18-lp152.44.1

openSUSE Leap 15.2: new kernel packages (20/10/2020).
New packages are available:
  openSUSE Leap 15.2: kernel 5.3.18-lp152.47.2

openSUSE Leap 15.2: new kernel packages (30/11/2020).
New packages are available:
  openSUSE Leap 15.2: kernel 5.3.18-lp152.50.1.lp152.8.10.1

openSUSE Leap 15.2: new kernel-rt packages.
New packages are available:
  openSUSE Leap 15.2: kernel-rt 5.3.18-lp152.3.5.1

RHEL 7.7: new kernel packages.
New packages are available:
  RHEL 7.0-7.9: kernel 3.10.0-1062.45.1.el7

RHEL 7.9: new kernel packages.
New packages are available:
  RHEL 7.0-7.9: kernel 3.10.0-1160.11.1.el7

RHEL 7.9: new kernel-rt packages.
New packages are available:
  RHEL 7.0-7.9: kernel-rt 3.10.0-1160.11.1.rt56.1145.el7

RHEL 7: new kernel-alt packages.
New packages are available:
  RHEL 7.0-7.9: kernel-alt 4.14.0-115.32.1.el7a

Slackware 14.2: new kernel packages (22/10/2020).
New packages are available:
  Slackware 14.2: kernel 4.4.240-i586-1

SUSE LE 12 SP2: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP2: kernel-default 4.4.121-92.146.1
  SUSE LE 12 SP2: kernel-default 4.4.121-92.146.1

SUSE LE 12 SP3: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP3: kernel-default 4.4.180-94.135.1

SUSE LE 12 SP4: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP4: kernel-default 4.12.14-95.65.1

SUSE LE 12 SP5: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.34.1

SUSE LE 12 SP5: new kernel packages (13/10/2020).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.41.1

SUSE LE 12 SP5: new kernel packages (22/10/2020).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.46.1

SUSE LE 12 SP5: new kerne-rt packages.
New packages are available:
  SUSE LE 12 SP5: kernel-rt 4.12.14-10.19.1

SUSE LE 15: new kernel packages.
New packages are available:
  SUSE LE 15 RTM: kernel-default-livepatch 4.12.14-150.63.1, kernel-livepatch 4_12_14-150_63-default-1-1.5.1

SUSE LE 15 SP1: new kernel-azure packages (13/10/2020).
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.47.1

SUSE LE 15 SP1: new kernel-azure packages (24/11/2020).
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.52.1

SUSE LE 15 SP1: new kernel packages.
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.61.1

SUSE LE 15 SP1: new kernel-rt packages (23/10/2020).
New packages are available:
  SUSE LE 15 SP1: kernel-rt 4.12.14-14.36.1

SUSE LE 15 SP2: new kernel-azure packages (13/10/2020).
New packages are available:
  SUSE LE 15 SP2: kernel-azure 5.3.18-18.21.1

SUSE LE 15 SP2: new kernel-azure packages (24/11/2020).
New packages are available:
  SUSE LE 15 SP2: kernel-azure 5.3.18-18.24.1

SUSE LE 15 SP2: new kernel packages (09/02/2021).
New packages are available:
  SUSE LE 15 SP2: kernel 5.3.18-24.49.3

SUSE LE 15 SP2: new kernel packages (09/10/2020).
New packages are available:
  SUSE LE 15 SP2: kernel 5.3.18-24.24.1

SUSE LE 15 SP2: new kernel-rt packages.
New packages are available:
  SUSE LE 15 SP2: kernel-rt 5.3.18-13.1

Ubuntu 20.04: new linux-image-5.4.0 packages.
New packages are available:
  Ubuntu 20.04 LTS: linux-image-5.4.0-48-generic 5.4.0-48.52

Ubuntu 20.04: new linux-image-5.6.0 packages.
New packages are available:
  Ubuntu 20.04 LTS: linux-image-oem-20.04 5.6.0.1048.44

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 14.04 ESM: linux-image-azure 4.15.0.1098.74
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.120.121
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.121.108

Ubuntu: new linux-image-4.4.0 packages (22/09/2020).
New packages are available:
  Ubuntu 16.04 LTS: linux-image-4.4.0-190-generic 4.4.0-190.220
  Ubuntu 14.04 ESM: linux-image-4.4.0-190-generic 4.4.0-190.220~14.04.1
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides an applications vulnerabilities alert. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system.