==========================================================================
Ubuntu Security Notice USN-6867-1
July 03, 2024

linux-bluefield, linux-iot vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-bluefield: Linux kernel for NVIDIA BlueField platforms
- linux-iot: Linux kernel for IoT platforms

Details:

It was discovered that the HugeTLB file system component of the Linux
Kernel contained a NULL pointer dereference vulnerability. A privileged
attacker could possibly use this to to cause a denial of service.
(CVE-2024-0841)

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:
   - ARM32 architecture;
   - PowerPC architecture;
   - x86 architecture;
   - DMA engine subsystem;
   - EFI core;
   - GPU drivers;
   - InfiniBand drivers;
   - Multiple devices driver;
   - Network drivers;
   - Power supply drivers;
   - TCM subsystem;
   - Userspace I/O drivers;
   - USB subsystem;
   - Framebuffer layer;
   - AFS file system;
   - File systems infrastructure;
   - BTRFS file system;
   - Ext4 file system;
   - Bluetooth subsystem;
   - Networking core;
   - IPv4 networking;
   - IPv6 networking;
   - L2TP protocol;
   - MAC80211 subsystem;
   - Netfilter;
   - Netlink;
   - Wireless networking;
(CVE-2021-47063, CVE-2024-26751, CVE-2024-26848, CVE-2024-26748,
CVE-2024-26733, CVE-2024-26735, CVE-2024-26805, CVE-2024-26804,
CVE-2024-26793, CVE-2023-52504, CVE-2024-27417, CVE-2024-27405,
CVE-2024-26778, CVE-2024-27414, CVE-2024-26801, CVE-2024-26835,
CVE-2024-27413, CVE-2024-26766, CVE-2024-27410, CVE-2024-27412,
CVE-2024-26773, CVE-2024-26777, CVE-2024-26839, CVE-2024-26764,
CVE-2024-26712, CVE-2024-26788, CVE-2024-26688, CVE-2024-26754,
CVE-2021-47070, CVE-2024-26752, CVE-2024-26845, CVE-2024-26791,
CVE-2024-26763, CVE-2024-27416, CVE-2024-26779, CVE-2024-26749,
CVE-2024-26736, CVE-2024-26840, CVE-2024-26772, CVE-2024-26790)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
   linux-image-5.4.0-1038-iot      5.4.0-1038.39
   linux-image-5.4.0-1086-bluefield  5.4.0-1086.93
   linux-image-bluefield           5.4.0.1086.82

After a standard system update you need to reboot your computer to make
all the necessary changes.

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.

References:
   https://ubuntu.com/security/notices/USN-6867-1
   CVE-2021-47063, CVE-2021-47070, CVE-2023-52504, CVE-2024-0841,
   CVE-2024-26688, CVE-2024-26712, CVE-2024-26733, CVE-2024-26735,
   CVE-2024-26736, CVE-2024-26748, CVE-2024-26749, CVE-2024-26751,
   CVE-2024-26752, CVE-2024-26754, CVE-2024-26763, CVE-2024-26764,
   CVE-2024-26766, CVE-2024-26772, CVE-2024-26773, CVE-2024-26777,
   CVE-2024-26778, CVE-2024-26779, CVE-2024-26788, CVE-2024-26790,
   CVE-2024-26791, CVE-2024-26793, CVE-2024-26801, CVE-2024-26804,
   CVE-2024-26805, CVE-2024-26835, CVE-2024-26839, CVE-2024-26840,
   CVE-2024-26845, CVE-2024-26848, CVE-2024-27405, CVE-2024-27410,
   CVE-2024-27412, CVE-2024-27413, CVE-2024-27414, CVE-2024-27416,
   CVE-2024-27417

Package Information:
   https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1086.93
   https://launchpad.net/ubuntu/+source/linux-iot/5.4.0-1038.39