1. Ubuntu Security Notices
  2. USN-7006-1

USN-7006-1: Linux kernel vulnerabilities

Publication date

12 September 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a null pointer dereference vulnerability. A
privileged local attacker could use this to possibly cause a denial of
service (system crash). (CVE-2024-24860)

It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)

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:

  • MIPS architecture;
  • PowerPC architecture;
  • SuperH RISC architecture;
  • x86 architecture;
  • ACPI drivers;
  • Serial ATA and Parallel ATA...

It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a null pointer dereference vulnerability. A
privileged local attacker could use this to possibly cause a denial of
service (system crash). (CVE-2024-24860)

It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)

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:

  • MIPS architecture;
  • PowerPC architecture;
  • SuperH RISC architecture;
  • x86 architecture;
  • ACPI drivers;
  • Serial ATA and Parallel ATA drivers;
  • Drivers core;
  • GPIO subsystem;
  • GPU drivers;
  • Greybus drivers;
  • HID subsystem;
  • I2C subsystem;
  • IIO subsystem;
  • InfiniBand drivers;
  • Media drivers;
  • VMware VMCI Driver;
  • MMC subsystem;
  • Network drivers;
  • Pin controllers subsystem;
  • S/390 drivers;
  • SCSI drivers;
  • USB subsystem;
  • GFS2 file system;
  • JFFS2 file system;
  • JFS file system;
  • File systems infrastructure;
  • NILFS2 file system;
  • IOMMU subsystem;
  • Sun RPC protocol;
  • Netfilter;
  • Memory management;
  • B.A.T.M.A.N. meshing protocol;
  • CAN network layer;
  • Ceph Core library;
  • Networking core;
  • IPv4 networking;
  • IPv6 networking;
  • IUCV driver;
  • MAC80211 subsystem;
  • NET/ROM layer;
  • Network traffic control;
  • HD-audio driver;
  • SoC Audio for Freescale CPUs drivers

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
20.04 focal linux-image-5.4.0-1043-iot –  5.4.0-1043.44

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References

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