USN-6767-2: Linux kernel (BlueField) vulnerabilities

Publication date

14 May 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases


Packages

Details

Chenyuan Yang discovered that the RDS Protocol implementation in the Linux
kernel contained an out-of-bounds read vulnerability. An attacker could use
this to possibly cause a denial of service (system crash). (CVE-2024-23849)

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;
  • PowerPC architecture;
  • S390 architecture;
  • Block layer subsystem;
  • Android drivers;
  • Hardware random number generator core;
  • GPU drivers;
  • Hardware monitoring drivers;
  • I2C subsystem;
  • IIO Magnetometer sensors drivers;
  • InfiniBand drivers;
  • Network drivers;
  • PCI driver for MicroSemi Switchtec;
  • PHY drivers;
  • Ceph distributed file system;
  • Ext4 file...

Chenyuan Yang discovered that the RDS Protocol implementation in the Linux
kernel contained an out-of-bounds read vulnerability. An attacker could use
this to possibly cause a denial of service (system crash). (CVE-2024-23849)

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;
  • PowerPC architecture;
  • S390 architecture;
  • Block layer subsystem;
  • Android drivers;
  • Hardware random number generator core;
  • GPU drivers;
  • Hardware monitoring drivers;
  • I2C subsystem;
  • IIO Magnetometer sensors drivers;
  • InfiniBand drivers;
  • Network drivers;
  • PCI driver for MicroSemi Switchtec;
  • PHY drivers;
  • Ceph distributed file system;
  • Ext4 file system;
  • JFS file system;
  • NILFS2 file system;
  • Pstore file system;
  • Core kernel;
  • Memory management;
  • CAN network layer;
  • Networking core;
  • IPv4 networking;
  • Logical Link layer;
  • Netfilter;
  • NFC subsystem;
  • SMC sockets;
  • Sun RPC protocol;
  • TIPC protocol;
  • Realtek audio codecs


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-5.4.0-1084-bluefield –  5.4.0-1084.91
linux-image-bluefield –  5.4.0.1084.80

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

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