1. Ubuntu Security Notices
  2. USN-6766-2

USN-6766-2: Linux kernel vulnerabilities

Publication date

15 May 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

It was discovered that the Open vSwitch implementation in the Linux kernel
could overflow its stack during recursive action operations under certain
conditions. A local attacker could use this to cause a denial of service
(system crash). (CVE-2024-1151)

Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida
discovered that the Linux kernel mitigations for the initial Branch History
Injection vulnerability (CVE-2022-0001) were insufficient for Intel
processors. A local attacker could potentially use this to expose sensitive
information. (CVE-2024-2201)

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). (

It was discovered that the Open vSwitch implementation in the Linux kernel
could overflow its stack during recursive action operations under certain
conditions. A local attacker could use this to cause a denial of service
(system crash). (CVE-2024-1151)

Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida
discovered that the Linux kernel mitigations for the initial Branch History
Injection vulnerability (CVE-2022-0001) were insufficient for Intel
processors. A local attacker could potentially use this to expose sensitive
information. (CVE-2024-2201)

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:

  • PowerPC architecture;
  • S390 architecture;
  • Core kernel;
  • Block layer subsystem;
  • Android drivers;
  • Power management core;
  • Bus devices;
  • Hardware random number generator core;
  • Cryptographic API;
  • Device frequency;
  • DMA engine subsystem;
  • ARM SCMI message protocol;
  • GPU drivers;
  • HID subsystem;
  • Hardware monitoring drivers;
  • I2C subsystem;
  • IIO ADC drivers;
  • IIO subsystem;
  • IIO Magnetometer sensors drivers;
  • InfiniBand drivers;
  • Media drivers;
  • Network drivers;
  • PCI driver for MicroSemi Switchtec;
  • PHY drivers;
  • SCSI drivers;
  • DesignWare USB3 driver;
  • BTRFS file system;
  • Ceph distributed file system;
  • Ext4 file system;
  • F2FS file system;
  • JFS file system;
  • NILFS2 file system;
  • NTFS3 file system;
  • Pstore file system;
  • SMB network file system;
  • Memory management;
  • CAN network layer;
  • Networking core;
  • HSR network protocol;
  • IPv4 networking;
  • IPv6 networking;
  • Logical Link layer;
  • Multipath TCP;
  • Netfilter;
  • NFC subsystem;
  • SMC sockets;
  • Sun RPC protocol;
  • TIPC protocol;
  • Unix domain sockets;
  • 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
22.04 jammy linux-image-5.15.0-1054-raspi –  5.15.0-1054.57
linux-image-raspi –  5.15.0.1054.52
linux-image-raspi-nolpae –  5.15.0.1054.52
20.04 focal linux-image-5.15.0-106-generic –  5.15.0-106.116~20.04.1
linux-image-5.15.0-106-generic-64k –  5.15.0-106.116~20.04.1
linux-image-5.15.0-106-generic-lpae –  5.15.0-106.116~20.04.1
linux-image-generic-64k-hwe-20.04 –  5.15.0.106.116~20.04.1
linux-image-generic-hwe-20.04 –  5.15.0.106.116~20.04.1
linux-image-generic-lpae-hwe-20.04 –  5.15.0.106.116~20.04.1
linux-image-oem-20.04 –  5.15.0.106.116~20.04.1
linux-image-oem-20.04b –  5.15.0.106.116~20.04.1
linux-image-oem-20.04c –  5.15.0.106.116~20.04.1
linux-image-oem-20.04d –  5.15.0.106.116~20.04.1
linux-image-virtual-hwe-20.04 –  5.15.0.106.116~20.04.1

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References

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