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Ubuntu Security Notice USN-5317-1

Ubuntu Security Notice USN-5317-1
Posted Mar 9, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5317-1 - Nick Gregory discovered that the Linux kernel incorrectly handled network offload functionality. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano Giuffrida discovered that hardware mitigations added by ARM to their processors to address Spectre-BTI were insufficient. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0001, CVE-2022-0002, CVE-2022-0847, CVE-2022-23960, CVE-2022-25636
SHA-256 | 9384dd69de0a826ed7ffc40ee1044171e71b4ab1c69a3fd6ee587362193097bf

Ubuntu Security Notice USN-5317-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5317-1
March 09, 2022

linux, linux-aws, linux-aws-5.13, linux-azure, linux-azure-5.13,
linux-gcp, linux-gcp-5.13, linux-hwe-5.13, linux-kvm, linux-oem-5.14,
linux-oracle, linux-oracle-5.13, linux-raspi vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.10
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi systems
- linux-aws-5.13: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure-5.13: Linux kernel for Microsoft Azure cloud systems
- linux-gcp-5.13: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe-5.13: Linux hardware enablement (HWE) kernel
- linux-oem-5.14: Linux kernel for OEM systems
- linux-oracle-5.13: Linux kernel for Oracle Cloud systems

Details:

Nick Gregory discovered that the Linux kernel incorrectly handled network
offload functionality. A local attacker could use this to cause a denial of
service or possibly execute arbitrary code. (CVE-2022-25636)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by ARM to their
processors to address Spectre-BTI were insufficient. A local attacker could
potentially use this to expose sensitive information. (CVE-2022-23960)

Max Kellermann discovered that the Linux kernel incorrectly handled Unix
pipes. A local attacker could potentially use this to modify any file that
could be opened for reading. (CVE-2022-0847)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by Intel to their
processors to address Spectre-BTI were insufficient. A local attacker could
potentially use this to expose sensitive information. (CVE-2022-0001,
CVE-2022-0002)

Update instructions:

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

Ubuntu 21.10:
linux-image-5.13.0-1016-kvm 5.13.0-1016.17
linux-image-5.13.0-1017-aws 5.13.0-1017.19
linux-image-5.13.0-1017-azure 5.13.0-1017.19
linux-image-5.13.0-1019-gcp 5.13.0-1019.23
linux-image-5.13.0-1020-raspi 5.13.0-1020.22
linux-image-5.13.0-1020-raspi-nolpae 5.13.0-1020.22
linux-image-5.13.0-1021-oracle 5.13.0-1021.26
linux-image-5.13.0-35-generic 5.13.0-35.40
linux-image-5.13.0-35-generic-64k 5.13.0-35.40
linux-image-5.13.0-35-generic-lpae 5.13.0-35.40
linux-image-5.13.0-35-lowlatency 5.13.0-35.40
linux-image-aws 5.13.0.1017.18
linux-image-azure 5.13.0.1017.17
linux-image-gcp 5.13.0.1019.17
linux-image-generic 5.13.0.35.44
linux-image-generic-64k 5.13.0.35.44
linux-image-generic-lpae 5.13.0.35.44
linux-image-gke 5.13.0.1019.17
linux-image-kvm 5.13.0.1016.16
linux-image-lowlatency 5.13.0.35.44
linux-image-oem-20.04 5.13.0.35.44
linux-image-oracle 5.13.0.1021.21
linux-image-raspi 5.13.0.1020.25
linux-image-raspi-nolpae 5.13.0.1020.25
linux-image-virtual 5.13.0.35.44

Ubuntu 20.04 LTS:
linux-image-5.13.0-1017-aws 5.13.0-1017.19~20.04.1
linux-image-5.13.0-1017-azure 5.13.0-1017.19~20.04.1
linux-image-5.13.0-1019-gcp 5.13.0-1019.23~20.04.1
linux-image-5.13.0-1021-oracle 5.13.0-1021.26~20.04.1
linux-image-5.13.0-35-generic 5.13.0-35.40~20.04.1
linux-image-5.13.0-35-generic-64k 5.13.0-35.40~20.04.1
linux-image-5.13.0-35-generic-lpae 5.13.0-35.40~20.04.1
linux-image-5.13.0-35-lowlatency 5.13.0-35.40~20.04.1
linux-image-5.14.0-1027-oem 5.14.0-1027.30
linux-image-aws 5.13.0.1017.19~20.04.10
linux-image-azure 5.13.0.1017.19~20.04.7
linux-image-gcp 5.13.0.1019.23~20.04.1
linux-image-generic-64k-hwe-20.04 5.13.0.35.40~20.04.20
linux-image-generic-hwe-20.04 5.13.0.35.40~20.04.20
linux-image-generic-lpae-hwe-20.04 5.13.0.35.40~20.04.20
linux-image-lowlatency-hwe-20.04 5.13.0.35.40~20.04.20
linux-image-oem-20.04 5.14.0.1027.24
linux-image-oem-20.04b 5.14.0.1027.24
linux-image-oem-20.04c 5.14.0.1027.24
linux-image-oem-20.04d 5.14.0.1027.24
linux-image-oracle 5.13.0.1021.26~20.04.1
linux-image-virtual-hwe-20.04 5.13.0.35.40~20.04.20

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

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.

References:
https://ubuntu.com/security/notices/USN-5317-1
CVE-2022-0001, CVE-2022-0002, CVE-2022-0847, CVE-2022-23960,
CVE-2022-25636, https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/BHI

Package Information:
https://launchpad.net/ubuntu/+source/linux/5.13.0-35.40
https://launchpad.net/ubuntu/+source/linux-aws/5.13.0-1017.19
https://launchpad.net/ubuntu/+source/linux-azure/5.13.0-1017.19
https://launchpad.net/ubuntu/+source/linux-gcp/5.13.0-1019.23
https://launchpad.net/ubuntu/+source/linux-kvm/5.13.0-1016.17
https://launchpad.net/ubuntu/+source/linux-oracle/5.13.0-1021.26
https://launchpad.net/ubuntu/+source/linux-raspi/5.13.0-1020.22
https://launchpad.net/ubuntu/+source/linux-aws-5.13/5.13.0-1017.19~20.04.1
https://launchpad.net/ubuntu/+source/linux-azure-5.13/5.13.0-1017.19~20.04.1
https://launchpad.net/ubuntu/+source/linux-gcp-5.13/5.13.0-1019.23~20.04.1
https://launchpad.net/ubuntu/+source/linux-hwe-5.13/5.13.0-35.40~20.04.1
https://launchpad.net/ubuntu/+source/linux-oem-5.14/5.14.0-1027.30
https://launchpad.net/ubuntu/+source/linux-oracle-5.13/5.13.0-1021.26~20.04.1

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