1. Ubuntu Security Notices
  2. USN-6774-1

USN-6774-1: Linux kernel vulnerabilities

Publication date

16 May 2024

Overview

Several security issues were fixed in the Linux kernel.

Releases

Packages

Details

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux
kernel contained a race condition during device removal, leading to a use-
after-free vulnerability. A physically proximate attacker could possibly
use this to cause a denial of service (system crash). (CVE-2023-47233)

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)

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:

  • Hardware random...

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux
kernel contained a race condition during device removal, leading to a use-
after-free vulnerability. A physically proximate attacker could possibly
use this to cause a denial of service (system crash). (CVE-2023-47233)

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)

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:

  • Hardware random number generator core;
  • Ext4 file system;
  • JFS file system;
  • Bluetooth subsystem;
  • Networking core;
  • IPv4 networking;
  • Logical Link layer;
  • Netlink;
  • Tomoyo security module

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-6.5.0-1014-starfive –  6.5.0-1014.15
linux-image-6.5.0-1016-laptop –  6.5.0-1016.19
linux-image-6.5.0-1017-raspi –  6.5.0-1017.20
linux-image-6.5.0-1020-aws –  6.5.0-1020.20
linux-image-6.5.0-1020-gcp –  6.5.0-1020.20
linux-image-6.5.0-1021-azure –  6.5.0-1021.22
linux-image-6.5.0-1021-azure-fde –  6.5.0-1021.22
linux-image-6.5.0-1023-oracle –  6.5.0-1023.23
linux-image-6.5.0-1023-oracle-64k –  6.5.0-1023.23
linux-image-6.5.0-35-generic –  6.5.0-35.35
linux-image-6.5.0-35-generic-64k –  6.5.0-35.35
linux-image-6.5.0-35-lowlatency –  6.5.0-35.35.1
linux-image-6.5.0-35-lowlatency-64k –  6.5.0-35.35.1
linux-image-aws –  6.5.0.1020.20
linux-image-azure –  6.5.0.1021.25
linux-image-azure-fde –  6.5.0.1021.25
linux-image-gcp –  6.5.0.1020.20
linux-image-generic –  6.5.0.35.35
linux-image-generic-64k –  6.5.0.35.35
linux-image-generic-lpae –  6.5.0.35.35
linux-image-kvm –  6.5.0.35.35
linux-image-laptop-23.10 –  6.5.0.1016.19
linux-image-lowlatency –  6.5.0.35.35.1
linux-image-lowlatency-64k –  6.5.0.35.35.1
linux-image-oracle –  6.5.0.1023.25
linux-image-oracle-64k –  6.5.0.1023.25
linux-image-raspi –  6.5.0.1017.18
linux-image-raspi-nolpae –  6.5.0.1017.18
linux-image-starfive –  6.5.0.1014.16
linux-image-virtual –  6.5.0.35.35
22.04 jammy linux-image-6.5.0-1014-starfive –  6.5.0-1014.15~22.04.1
linux-image-6.5.0-1019-nvidia –  6.5.0-1019.19
linux-image-6.5.0-1019-nvidia-64k –  6.5.0-1019.19
linux-image-6.5.0-1020-aws –  6.5.0-1020.20~22.04.1
linux-image-6.5.0-1020-gcp –  6.5.0-1020.20~22.04.1
linux-image-6.5.0-1021-azure –  6.5.0-1021.22~22.04.1
linux-image-6.5.0-1021-azure-fde –  6.5.0-1021.22~22.04.1
linux-image-6.5.0-1023-oem –  6.5.0-1023.24
linux-image-6.5.0-1023-oracle –  6.5.0-1023.23~22.04.1
linux-image-6.5.0-1023-oracle-64k –  6.5.0-1023.23~22.04.1
linux-image-6.5.0-35-generic –  6.5.0-35.35~22.04.1
linux-image-6.5.0-35-generic-64k –  6.5.0-35.35~22.04.1
linux-image-6.5.0-35-lowlatency –  6.5.0-35.35.1~22.04.1
linux-image-6.5.0-35-lowlatency-64k –  6.5.0-35.35.1~22.04.1
linux-image-aws –  6.5.0.1020.20~22.04.1
linux-image-azure –  6.5.0.1021.22~22.04.1
linux-image-azure-fde –  6.5.0.1021.22~22.04.1
linux-image-gcp –  6.5.0.1020.20~22.04.1
linux-image-generic-64k-hwe-22.04 –  6.5.0.35.35~22.04.1
linux-image-generic-hwe-22.04 –  6.5.0.35.35~22.04.1
linux-image-lowlatency-64k-hwe-22.04 –  6.5.0.35.35.1~22.04.1
linux-image-lowlatency-hwe-22.04 –  6.5.0.35.35.1~22.04.1
linux-image-nvidia-6.5 –  6.5.0.1019.26
linux-image-nvidia-64k-6.5 –  6.5.0.1019.26
linux-image-nvidia-64k-hwe-22.04 –  6.5.0.1019.26
linux-image-nvidia-hwe-22.04 –  6.5.0.1019.26
linux-image-oem-22.04 –  6.5.0.1023.25
linux-image-oem-22.04a –  6.5.0.1023.25
linux-image-oem-22.04b –  6.5.0.1023.25
linux-image-oem-22.04c –  6.5.0.1023.25
linux-image-oem-22.04d –  6.5.0.1023.25
linux-image-oracle –  6.5.0.1023.23~22.04.1
linux-image-oracle-64k –  6.5.0.1023.23~22.04.1
linux-image-starfive –  6.5.0.1014.15~22.04.1
linux-image-virtual-hwe-22.04 –  6.5.0.35.35~22.04.1

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References

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