1. Ubuntu Security Notices
  2. USN-6819-1

USN-6819-1: Linux kernel vulnerabilities

Publication date

7 June 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel
did not properly validate H2C PDU data, leading to a null pointer
dereference vulnerability. A remote attacker could use this to cause a
denial of service (system crash). (CVE-2023-6356, CVE-2023-6535,
CVE-2023-6536)

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)

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). (

Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel
did not properly validate H2C PDU data, leading to a null pointer
dereference vulnerability. A remote attacker could use this to cause a
denial of service (system crash). (CVE-2023-6356, CVE-2023-6535,
CVE-2023-6536)

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)

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)

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;
  • RISC-V architecture;
  • S390 architecture;
  • Core kernel;
  • x86 architecture;
  • Block layer subsystem;
  • Cryptographic API;
  • ACPI drivers;
  • Android drivers;
  • Drivers core;
  • Power management core;
  • Bus devices;
  • Device frequency scaling framework;
  • DMA engine subsystem;
  • EDAC drivers;
  • ARM SCMI message protocol;
  • GPU drivers;
  • IIO ADC drivers;
  • InfiniBand drivers;
  • IOMMU subsystem;
  • Media drivers;
  • Multifunction device drivers;
  • MTD block device drivers;
  • Network drivers;
  • NVME drivers;
  • Device tree and open firmware driver;
  • PCI driver for MicroSemi Switchtec;
  • Power supply drivers;
  • RPMSG subsystem;
  • SCSI drivers;
  • QCOM SoC drivers;
  • SPMI drivers;
  • Thermal drivers;
  • TTY drivers;
  • VFIO drivers;
  • BTRFS file system;
  • Ceph distributed file system;
  • EFI Variable file system;
  • EROFS file system;
  • Ext4 file system;
  • F2FS file system;
  • GFS2 file system;
  • JFS file system;
  • Network file systems library;
  • Network file system server daemon;
  • File systems infrastructure;
  • Pstore file system;
  • ReiserFS file system;
  • SMB network file system;
  • BPF subsystem;
  • Memory management;
  • TLS protocol;
  • Ethernet bridge;
  • Networking core;
  • IPv4 networking;
  • IPv6 networking;
  • Logical Link layer;
  • MAC80211 subsystem;
  • Multipath TCP;
  • Netfilter;
  • NetLabel subsystem;
  • Network traffic control;
  • SMC sockets;
  • Sun RPC protocol;
  • AppArmor security module;
  • Intel ASoC drivers;
  • MediaTek ASoC drivers;
  • USB sound devices

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
23.10 mantic linux-image-6.5.0-1015-starfive –  6.5.0-1015.16
linux-image-6.5.0-1022-azure –  6.5.0-1022.23
linux-image-6.5.0-1022-azure-fde –  6.5.0-1022.23
linux-image-azure –  6.5.0.1022.26
linux-image-azure-fde –  6.5.0.1022.26
linux-image-starfive –  6.5.0.1015.17
22.04 jammy linux-image-6.5.0-1015-starfive –  6.5.0-1015.16~22.04.1
linux-image-6.5.0-1022-azure –  6.5.0-1022.23~22.04.1
linux-image-6.5.0-1022-azure-fde –  6.5.0-1022.23~22.04.1
linux-image-azure –  6.5.0.1022.23~22.04.1
linux-image-azure-fde –  6.5.0.1022.23~22.04.1
linux-image-starfive –  6.5.0.1015.16~22.04.1

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References

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