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: information disclosure via qrtr_recvmsg

Synthesis of the vulnerability 

A local attacker can read a memory fragment via qrtr_recvmsg() of the Linux kernel, in order to obtain sensitive information.
Vulnerable systems: Fedora, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 1/4.
Creation date: 31/03/2021.
Références of this weakness: CERTFR-2021-AVI-264, CERTFR-2021-AVI-278, CERTFR-2021-AVI-284, CERTFR-2021-AVI-372, CERTFR-2021-AVI-392, CERTFR-2021-AVI-432, CERTFR-2021-AVI-436, CERTFR-2021-AVI-469, CVE-2021-29647, FEDORA-2021-2306e89112, FEDORA-2021-6b0f287b8b, openSUSE-SU-2021:0532-1, openSUSE-SU-2021:0758-1, SUSE-SU-2021:1175-1, SUSE-SU-2021:1176-1, SUSE-SU-2021:1177-1, SUSE-SU-2021:1210-1, SUSE-SU-2021:1211-1, SUSE-SU-2021:1238-1, SUSE-SU-2021:1573-1, SUSE-SU-2021:1596-1, SUSE-SU-2021:1624-1, SUSE-SU-2021:1975-1, SUSE-SU-2021:1977-1, USN-4948-1, USN-4979-1, USN-4982-1, USN-4984-1, VIGILANCE-VUL-34982.

Description of the vulnerability 

A local attacker can read a memory fragment via qrtr_recvmsg() of the Linux kernel, in order to obtain sensitive information.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer weakness bulletin impacts software or systems such as Fedora, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat announce is low.

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 threat announce.

Solutions for this threat 

Linux kernel: version 5.11.11.
The version 5.11.11 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.10.27.
The version 5.10.27 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.4.109.
The version 5.4.109 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.184.
The version 4.19.184 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.228.
The version 4.14.228 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.264.
The version 4.9.264 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

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

Fedora 32-33: new kernel-headers packages.
New packages are available:
  Fedora 32: kernel-headers 5.11.11-100.fc32
  Fedora 33: kernel-headers 5.11.11-200.fc33

Fedora 32-33: new kernel packages.
New packages are available:
  Fedora 32: kernel 5.11.11-100.fc32
  Fedora 33: kernel 5.11.11-200.fc33

Fedora 32-33: new kernel-tools packages.
New packages are available:
  Fedora 32: kernel-tools 5.11.11-100.fc32
  Fedora 33: kernel-tools 5.11.11-200.fc33

openSUSE Leap 15.2: new kernel packages.
New packages are available:
  openSUSE Leap 15.2: kernel 5.3.18-lp152.69.1

openSUSE Leap 15.2: new kernel-rt packages.
New packages are available:
  openSUSE Leap 15.2: kernel-rt 5.3.18-lp152.3.8.1

SUSE LE 12 SP4: new kernel packages.
New packages are available:
  SUSE LE 12 SP4: kernel 4.12.14-95.74.1

SUSE LE 12 SP5: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.50.1

SUSE LE 12 SP5: new kernel packages (16/04/2021).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.66.2

SUSE LE 12 SP5: new kernel-rt packages.
New packages are available:
  SUSE LE 12 SP5: kernel-rt 4.12.14-10.37.1

SUSE LE 15 RTM: new kernel packages.
New packages are available:
  SUSE LE 15 RTM: kernel 4.12.14-150.72.1

SUSE LE 15 SP1: new kernel packages (18/05/2021).
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.89.2

SUSE LE 15 SP2: new kernel-azure packages.
New packages are available:
  SUSE LE 15 SP2: kernel-azure 5.3.18-18.41.1

SUSE LE 15 SP2: new kernel packages.
New packages are available:
  SUSE LE 15 SP2: kernel 5.3.18-24.61.1

SUSE LE 15 SP2: new kernel-rt packages.
New packages are available:
  SUSE LE 15 SP2: kernel-rt 5.3.18-33.1

SUSE LE 15 SP3: new kernel-azure packages.
New packages are available:
  SUSE LE 15 SP3: kernel-azure 5.3.18-38.3.1

SUSE LE 15 SP3: new kernel packages.
New packages are available:
  SUSE LE 15 SP3: kernel 5.3.18-59.5.2

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.144.131
  Ubuntu 16.04 ESM: linux-image-generic-hwe-16.04 4.15.0.144.140
  Ubuntu 14.04 ESM: linux-image-azure 4.15.0.1115.88

Ubuntu: new linux-image-5.10.0 packages.
New packages are available:
  Ubuntu 20.04 LTS: linux-image-5.10.0-1026-oem 5.10.0-1026.27, linux-image-oem-20.04b 5.10.0.1026.27

Ubuntu: new linux-image-5.4.0 packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.4.0.74.83~18.04.67
  Ubuntu 20.04 LTS: linux-image-generic 5.4.0.74.77

Ubuntu: new linux-image-5.8.0 packages.
New packages are available:
  Ubuntu 20.10: linux-image-generic 5.8.0.55.60
  Ubuntu 20.04 LTS: linux-image-generic-hwe-20.04 5.8.0.55.62~20.04.39
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computers vulnerabilities workaround. Each administrator can customize the list of products for which he wants to receive vulnerability alerts.