USN-7121-1: Linux kernel vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• linux - Linux kernel
• linux-aws - Linux kernel for Amazon Web Services (AWS) systems
• linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems
• linux-azure - Linux kernel for Microsoft Azure Cloud systems
• linux-azure-4.15 - Linux kernel for Microsoft Azure Cloud systems
• linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
• linux-gcp-4.15 - Linux kernel for Google Cloud Platform (GCP) systems
• linux-hwe - Linux hardware enablement (HWE) kernel
• linux-kvm - Linux kernel for cloud environments
• linux-oracle - Linux kernel for Oracle Cloud systems

Details

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:

• ARM64 architecture;
• S390 architecture;
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• ATM drivers;
• Device frequency scaling framework;
• GPU drivers;
• Hardware monitoring drivers;
• VMware VMCI Driver;
• Network drivers;
• Device tree and open firmware driver;
• SCSI drivers;
• Greybus lights staging drivers;
• BTRFS file system;
• File systems infrastructure;
• F2FS file system;
• JFS file system;
• NILFS2 file system;
• Netfilter;
• Memory management;
• Ethernet bridge;
• IPv6 networking;
• IUCV driver;
• Logical Link layer;
• MAC80211 subsystem;
• NFC subsystem;
• Network traffic control;
• Unix domain sockets;
  (CVE-2023-52614, CVE-2024-26633, CVE-2024-46758, CVE-2024-46723,
  CVE-2023-52502, CVE-2024-41059, CVE-2024-44987, CVE-2024-36020,
  CVE-2023-52599, CVE-2023-52639, CVE-2024-26668, CVE-2024-42094,
  CVE-2022-48938, CVE-2022-48733, CVE-2024-27397, CVE-2023-52578,
  CVE-2024-38560, CVE-2024-38538, CVE-2024-42310, CVE-2024-46722,
  CVE-2024-46800, CVE-2024-41095, CVE-2024-42104, CVE-2024-35877,
  CVE-2022-48943, CVE-2024-46743, CVE-2023-52531, CVE-2024-46757,
  CVE-2024-36953, CVE-2024-46756, CVE-2024-38596, CVE-2023-52612,
  CVE-2024-38637, CVE-2024-41071, CVE-2024-46759, CVE-2024-43882,
  CVE-2024-26675, CVE-2024-43854, CVE-2024-44942, CVE-2024-44998,
  CVE-2024-42240, CVE-2024-41089, CVE-2024-26636, CVE-2024-46738,
  CVE-2024-42309)

Update instructions

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

Ubuntu 18.04

• linux-image-4.15.0-1137-oracle - 4.15.0-1137.148
  Available with Ubuntu Pro
• linux-image-4.15.0-1158-kvm - 4.15.0-1158.163
  Available with Ubuntu Pro
• linux-image-4.15.0-1168-gcp - 4.15.0-1168.185
  Available with Ubuntu Pro
• linux-image-4.15.0-1175-aws - 4.15.0-1175.188
  Available with Ubuntu Pro
• linux-image-4.15.0-1183-azure - 4.15.0-1183.198
  Available with Ubuntu Pro
• linux-image-4.15.0-231-generic - 4.15.0-231.243
  Available with Ubuntu Pro
• linux-image-4.15.0-231-lowlatency - 4.15.0-231.243
  Available with Ubuntu Pro
• linux-image-aws-lts-18.04 - 4.15.0.1175.173
  Available with Ubuntu Pro
• linux-image-azure-lts-18.04 - 4.15.0.1183.151
  Available with Ubuntu Pro
• linux-image-gcp-lts-18.04 - 4.15.0.1168.181
  Available with Ubuntu Pro
• linux-image-generic - 4.15.0.231.215
  Available with Ubuntu Pro
• linux-image-kvm - 4.15.0.1158.149
  Available with Ubuntu Pro
• linux-image-lowlatency - 4.15.0.231.215
  Available with Ubuntu Pro
• linux-image-oracle-lts-18.04 - 4.15.0.1137.142
  Available with Ubuntu Pro
• linux-image-virtual - 4.15.0.231.215
  Available with Ubuntu Pro

Ubuntu 16.04

• linux-image-4.15.0-1168-gcp - 4.15.0-1168.185~16.04.1
  Available with Ubuntu Pro
• linux-image-4.15.0-1175-aws - 4.15.0-1175.188~16.04.1
  Available with Ubuntu Pro
• linux-image-4.15.0-1183-azure - 4.15.0-1183.198~16.04.1
  Available with Ubuntu Pro
• linux-image-4.15.0-231-generic - 4.15.0-231.243~16.04.1
  Available with Ubuntu Pro
• linux-image-4.15.0-231-lowlatency - 4.15.0-231.243~16.04.1
  Available with Ubuntu Pro
• linux-image-aws-hwe - 4.15.0.1175.188~16.04.1
  Available with Ubuntu Pro
• linux-image-azure - 4.15.0.1183.198~16.04.1
  Available with Ubuntu Pro
• linux-image-gcp - 4.15.0.1168.185~16.04.1
  Available with Ubuntu Pro
• linux-image-generic-hwe-16.04 - 4.15.0.231.243~16.04.1
  Available with Ubuntu Pro
• linux-image-gke - 4.15.0.1168.185~16.04.1
  Available with Ubuntu Pro
• linux-image-lowlatency-hwe-16.04 - 4.15.0.231.243~16.04.1
  Available with Ubuntu Pro
• linux-image-oem - 4.15.0.231.243~16.04.1
  Available with Ubuntu Pro
• linux-image-virtual-hwe-16.04 - 4.15.0.231.243~16.04.1
  Available with Ubuntu Pro

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

• CVE-2024-43854
• CVE-2024-46738
• CVE-2023-52639
• CVE-2024-38596
• CVE-2024-42104
• CVE-2024-46759
• CVE-2023-52502
• CVE-2022-48938
• CVE-2024-26636
• CVE-2024-35877
• CVE-2022-48943
• CVE-2022-48733
• CVE-2024-42310
• CVE-2024-27397
• CVE-2024-42240
• CVE-2024-38560
• CVE-2024-36020
• CVE-2024-42309
• CVE-2024-46722
• CVE-2023-52531
• CVE-2024-26668
• CVE-2023-52612
• CVE-2024-46743
• CVE-2024-44987
• CVE-2024-42094
• CVE-2024-44942
• CVE-2024-41059
• CVE-2024-41071
• CVE-2024-26675
• CVE-2024-46800
• CVE-2024-46758
• CVE-2024-38637
• CVE-2024-41089
• CVE-2024-41095
• CVE-2024-43882
• CVE-2023-52599
• CVE-2023-52614
• CVE-2024-38538
• CVE-2024-46723
• CVE-2024-46756
• CVE-2024-36953
• CVE-2023-52578
• CVE-2024-46757
• CVE-2024-26633
• CVE-2024-44998

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