========================================================================== Ubuntu Security Notice USN-6778-1 May 16, 2024
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-kvm: Linux kernel for cloud environments
- linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty
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:
- Ext4 file system;
- JFS file system;
- NILFS2 file system;
- Core kernel;
- Bluetooth subsystem;
- Networking core;
- IPv4 networking;
- Logical Link layer;
- MAC80211 subsystem;
- Netlink;
- NFC subsystem;
- Tomoyo security module;
(CVE-2023-52601, CVE-2024-26622, CVE-2024-26805, CVE-2024-26635,
CVE-2023-52602, CVE-2024-26801, CVE-2023-52566, CVE-2024-26704,
CVE-2021-46939, CVE-2024-26614, CVE-2023-52604, CVE-2023-52530,
CVE-2023-52524)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS
linux-image-4.4.0-1132-kvm 4.4.0-1132.142
Available with Ubuntu Pro
linux-image-4.4.0-1169-aws 4.4.0-1169.184
Available with Ubuntu Pro
linux-image-4.4.0-254-generic 4.4.0-254.288
Available with Ubuntu Pro
linux-image-4.4.0-254-lowlatency 4.4.0-254.288
Available with Ubuntu Pro
linux-image-aws 4.4.0.1169.173
Available with Ubuntu Pro
linux-image-generic 4.4.0.254.260
Available with Ubuntu Pro
linux-image-generic-lts-xenial 4.4.0.254.260
Available with Ubuntu Pro
linux-image-kvm 4.4.0.1132.129
Available with Ubuntu Pro
linux-image-lowlatency 4.4.0.254.260
Available with Ubuntu Pro
linux-image-lowlatency-lts-xenial 4.4.0.254.260
Available with Ubuntu Pro
linux-image-virtual 4.4.0.254.260
Available with Ubuntu Pro
linux-image-virtual-lts-xenial 4.4.0.254.260
Available with Ubuntu Pro
Ubuntu 14.04 LTS
linux-image-4.4.0-1131-aws 4.4.0-1131.137
Available with Ubuntu Pro
linux-image-4.4.0-254-generic 4.4.0-254.288~14.04.1
Available with Ubuntu Pro
linux-image-4.4.0-254-lowlatency 4.4.0-254.288~14.04.1
Available with Ubuntu Pro
linux-image-aws 4.4.0.1131.128
Available with Ubuntu Pro
linux-image-generic-lts-xenial 4.4.0.254.288~14.04.1
Available with Ubuntu Pro
linux-image-lowlatency-lts-xenial 4.4.0.254.288~14.04.1
Available with Ubuntu Pro
linux-image-virtual-lts-xenial 4.4.0.254.288~14.04.1
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-6778-1
CVE-2021-46939, CVE-2023-47233, CVE-2023-52524, CVE-2023-52530,
CVE-2023-52566, CVE-2023-52601, CVE-2023-52602, CVE-2023-52604,
CVE-2024-26614, CVE-2024-26622, CVE-2024-26635, CVE-2024-26704,
CVE-2024-26801, CVE-2024-26805
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