Ubuntu Security Notice USN-6867-1

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

linux-bluefield, linux-iot vulnerabilities
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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