USN-5417-1: Linux kernel vulnerabilities

Publication date

12 May 2022

Overview

Several security issues were fixed in the Linux kernel.


Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-aws-5.13 - Linux kernel for Amazon Web Services (AWS) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-azure-5.13 - Linux kernel for Microsoft Azure cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gcp-5.13 - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-hwe-5.13 - Linux hardware enablement (HWE) kernel
  • linux-kvm - Linux kernel for cloud environments
  • linux-oracle - Linux kernel for Oracle Cloud systems
  • linux-raspi - Linux kernel for Raspberry Pi systems

Details

Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk,
Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre
Variant 2 mitigations for AMD processors on Linux were insufficient in some
situations. A local attacker could possibly use this to expose sensitive
information. (CVE-2021-26401)

It was discovered that the MMC/SD subsystem in the Linux kernel did not
properly handle read errors from SD cards in certain situations. An
attacker could possibly use this to expose sensitive information (kernel
memory). (CVE-2022-20008)

It was discovered that the USB gadget subsystem in the Linux kernel did not
properly validate interface descriptor requests. An attacker could possibly
use this to cause a denial of service (system crash). (CVE-2022-25258)

It was discovered that the Remote...

Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk,
Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre
Variant 2 mitigations for AMD processors on Linux were insufficient in some
situations. A local attacker could possibly use this to expose sensitive
information. (CVE-2021-26401)

It was discovered that the MMC/SD subsystem in the Linux kernel did not
properly handle read errors from SD cards in certain situations. An
attacker could possibly use this to expose sensitive information (kernel
memory). (CVE-2022-20008)

It was discovered that the USB gadget subsystem in the Linux kernel did not
properly validate interface descriptor requests. An attacker could possibly
use this to cause a denial of service (system crash). (CVE-2022-25258)

It was discovered that the Remote NDIS (RNDIS) USB gadget implementation in
the Linux kernel did not properly validate the size of the RNDIS_MSG_SET
command. An attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2022-25375)

It was discovered that the ST21NFCA NFC driver in the Linux kernel did not
properly validate the size of certain data in EVT_TRANSACTION events. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-26490)

It was discovered that the USB SR9700 ethernet device driver for the Linux
kernel did not properly validate the length of requests from the device. A
physically proximate attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2022-26966)

It was discovered that the Xilinx USB2 device gadget driver in the Linux
kernel did not properly validate endpoint indices from the host. A
physically proximate attacker could possibly use this to cause a denial of
service (system crash). (CVE-2022-27223)

Miaoqian Lin discovered that the RDMA Transport (RTRS) client
implementation in the Linux kernel contained a double-free when handling
certain error conditions. An attacker could use this to cause a denial of
service (system crash). (CVE-2022-29156)


Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
21.10 impish linux-image-virtual –  5.13.0.41.50
linux-image-5.13.0-41-generic –  5.13.0-41.46
linux-image-generic-64k –  5.13.0.41.50
linux-image-generic –  5.13.0.41.50
linux-image-aws –  5.13.0.1023.24
linux-image-5.13.0-1025-gcp –  5.13.0-1025.30
linux-image-5.13.0-1026-raspi –  5.13.0-1026.28
linux-image-5.13.0-1026-raspi-nolpae –  5.13.0-1026.28
linux-image-5.13.0-41-generic-64k –  5.13.0-41.46
linux-image-azure –  5.13.0.1023.23
linux-image-raspi-nolpae –  5.13.0.1026.31
linux-image-5.13.0-1023-aws –  5.13.0-1023.25
linux-image-oem-20.04 –  5.13.0.41.50
linux-image-5.13.0-1023-azure –  5.13.0-1023.27
linux-image-gke –  5.13.0.1025.23
linux-image-5.13.0-41-lowlatency –  5.13.0-41.46
linux-image-5.13.0-41-generic-lpae –  5.13.0-41.46
linux-image-gcp –  5.13.0.1025.23
linux-image-oracle –  5.13.0.1028.28
linux-image-5.13.0-1022-kvm –  5.13.0-1022.23
linux-image-raspi –  5.13.0.1026.31
linux-image-kvm –  5.13.0.1022.22
linux-image-5.13.0-1028-oracle –  5.13.0-1028.33
linux-image-generic-lpae –  5.13.0.41.50
linux-image-lowlatency –  5.13.0.41.50
20.04 focal linux-image-5.13.0-41-generic –  5.13.0-41.46~20.04.1
linux-image-aws –  5.13.0.1023.25~20.04.16
linux-image-lowlatency-hwe-20.04 –  5.13.0.41.46~20.04.26
linux-image-generic-hwe-20.04 –  5.13.0.41.46~20.04.26
linux-image-5.13.0-41-generic-64k –  5.13.0-41.46~20.04.1
linux-image-5.13.0-1023-azure –  5.13.0-1023.27~20.04.1
linux-image-azure –  5.13.0.1023.27~20.04.12
linux-image-5.13.0-1023-aws –  5.13.0-1023.25~20.04.1
linux-image-5.13.0-41-generic-lpae –  5.13.0-41.46~20.04.1
linux-image-gcp –  5.13.0.1025.30~20.04.1
linux-image-virtual-hwe-20.04 –  5.13.0.41.46~20.04.26
linux-image-generic-lpae-hwe-20.04 –  5.13.0.41.46~20.04.26
linux-image-5.13.0-1025-gcp –  5.13.0-1025.30~20.04.1
linux-image-generic-64k-hwe-20.04 –  5.13.0.41.46~20.04.26
linux-image-5.13.0-41-lowlatency –  5.13.0-41.46~20.04.1

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