==========================================================================
Ubuntu Security Notice USN-6777-4
May 23, 2024

linux-aws-hwe vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems

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)

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:
   - Block layer subsystem;
   - Userspace I/O drivers;
   - Ceph distributed file system;
   - Ext4 file system;
   - JFS file system;
   - NILFS2 file system;
   - Bluetooth subsystem;
   - Networking core;
   - IPv4 networking;
   - IPv6 networking;
   - Logical Link layer;
   - MAC80211 subsystem;
   - Netlink;
   - NFC subsystem;
   - Tomoyo security module;
(CVE-2023-52524, CVE-2023-52530, CVE-2023-52601, CVE-2023-52439,
CVE-2024-26635, CVE-2023-52602, CVE-2024-26614, CVE-2024-26704,
CVE-2023-52604, CVE-2023-52566, CVE-2021-46981, CVE-2024-26622,
CVE-2024-26735, CVE-2024-26805, CVE-2024-26801, CVE-2023-52583)

Update instructions:

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

Ubuntu 16.04 LTS
   linux-image-4.15.0-1168-aws     4.15.0-1168.181~16.04.1
                                   Available with Ubuntu Pro
   linux-image-aws-hwe             4.15.0.1168.181~16.04.1
                                   Available with Ubuntu Pro

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-6777-4
   https://ubuntu.com/security/notices/USN-6777-1
   CVE-2021-46981, CVE-2023-47233, CVE-2023-52439, CVE-2023-52524,
   CVE-2023-52530, CVE-2023-52566, CVE-2023-52583, CVE-2023-52601,
   CVE-2023-52602, CVE-2023-52604, CVE-2024-26614, CVE-2024-26622,
   CVE-2024-26635, CVE-2024-26704, CVE-2024-26735, CVE-2024-26801,
   CVE-2024-26805

Ubuntu 6777-4: Linux kernel (HWE) Security Advisory Updates

May 23, 2024
Several security issues were fixed in the Linux kernel.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems 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) 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: - Block layer subsystem; - Userspace I/O drivers; - Ceph distributed file system; - Ext4 file system; - JFS file system; - NILFS2 file system; - Bluetooth subsystem; - Networking core; - IPv4 networking; - IPv6 networking; - Logical Link layer; - MAC80211 subsystem; - Netlink; - NFC subsystem; - Tomoyo security module; (CVE-2023-52524, CVE-2023-52530, CVE-2023-52601, CVE-2023-52439, CVE-2024-26635, CVE-2023-52602, CVE-2024-26614, CVE-2024-26704, CVE-2023-52604, CVE-2023-52566, CVE-2021-46981, CVE-2024-26622, CVE-2024-26735, CVE-2024-26805, CVE-2024-26801, CVE-2023-52583)

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS linux-image-4.15.0-1168-aws 4.15.0-1168.181~16.04.1 Available with Ubuntu Pro linux-image-aws-hwe 4.15.0.1168.181~16.04.1 Available with Ubuntu Pro 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-6777-4

https://ubuntu.com/security/notices/USN-6777-1

CVE-2021-46981, CVE-2023-47233, CVE-2023-52439, CVE-2023-52524,

CVE-2023-52530, CVE-2023-52566, CVE-2023-52583, CVE-2023-52601,

CVE-2023-52602, CVE-2023-52604, CVE-2024-26614, CVE-2024-26622,

CVE-2024-26635, CVE-2024-26704, CVE-2024-26735, CVE-2024-26801,

CVE-2024-26805

Severity
Ubuntu Security Notice USN-6777-4

Package Information

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