Linux Kernel Update for Ubuntu 14.04 LTS
Overview:
A recent security update has been issued for Ubuntu 14.04 LTS due to multiple vulnerabilities discovered in the Linux kernel. Key issues identified include a use-after-free vulnerability stemming from a race condition in the Unix domain socket, as well as security flaws in the HID and media drivers subsystems.
Security Notice:
- Date: August 27, 2025
- Notice Number: USN-7720-1
Affected Systems:
- Ubuntu 14.04 LTS and its derivatives.
Summary of Vulnerabilities:
1. CVE-2021-0920: A race condition in the Unix domain socket implementation can lead to a use-after-free vulnerability, potentially allowing local attackers to crash the system or execute arbitrary code.
2. CVE-2024-50302 and CVE-2024-53104: These vulnerabilities in the HID and media drivers could be exploited by attackers to compromise the system.
Software Description:
- Package: Linux kernel
Update Instructions:
To resolve these vulnerabilities, users must update their systems to the specified package versions:
- linux-image-3.13.0-207-generic: 3.13.0-207.258
- linux-image-3.13.0-207-lowlatency: 3.13.0-207.258
- linux-image-generic: 3.13.0.207.217
- linux-image-generic-lts-trusty: 3.13.0.207.217
- linux-image-lowlatency: 3.13.0.207.217
- linux-image-server: 3.13.0.207.217
- linux-image-virtual: 3.13.0.207.217
After performing a standard system update, it is crucial to reboot the computer to apply the changes.
Important Note:
Due to an unavoidable change in the Application Binary Interface (ABI), the kernel updates will have new version numbers. This necessitates recompiling and reinstalling any third-party kernel modules that may have been installed. However, if users have not manually uninstalled standard kernel metapackages (like linux-generic), the standard system upgrade will handle the recompilation automatically.
For further details, refer to the [Ubuntu Security Notice USN-7720-1](https://ubuntu.com/security/notices/USN-7720-1) and the specific CVE references.
Future Considerations:
Given that Ubuntu 14.04 LTS has reached the end of its standard support life, users are encouraged to consider upgrading to a newer, supported version of Ubuntu to ensure ongoing security updates and improvements. This will provide access to the latest features, performance enhancements, and security patches, thereby improving overall system stability and security
Overview:
A recent security update has been issued for Ubuntu 14.04 LTS due to multiple vulnerabilities discovered in the Linux kernel. Key issues identified include a use-after-free vulnerability stemming from a race condition in the Unix domain socket, as well as security flaws in the HID and media drivers subsystems.
Security Notice:
- Date: August 27, 2025
- Notice Number: USN-7720-1
Affected Systems:
- Ubuntu 14.04 LTS and its derivatives.
Summary of Vulnerabilities:
1. CVE-2021-0920: A race condition in the Unix domain socket implementation can lead to a use-after-free vulnerability, potentially allowing local attackers to crash the system or execute arbitrary code.
2. CVE-2024-50302 and CVE-2024-53104: These vulnerabilities in the HID and media drivers could be exploited by attackers to compromise the system.
Software Description:
- Package: Linux kernel
Update Instructions:
To resolve these vulnerabilities, users must update their systems to the specified package versions:
- linux-image-3.13.0-207-generic: 3.13.0-207.258
- linux-image-3.13.0-207-lowlatency: 3.13.0-207.258
- linux-image-generic: 3.13.0.207.217
- linux-image-generic-lts-trusty: 3.13.0.207.217
- linux-image-lowlatency: 3.13.0.207.217
- linux-image-server: 3.13.0.207.217
- linux-image-virtual: 3.13.0.207.217
After performing a standard system update, it is crucial to reboot the computer to apply the changes.
Important Note:
Due to an unavoidable change in the Application Binary Interface (ABI), the kernel updates will have new version numbers. This necessitates recompiling and reinstalling any third-party kernel modules that may have been installed. However, if users have not manually uninstalled standard kernel metapackages (like linux-generic), the standard system upgrade will handle the recompilation automatically.
For further details, refer to the [Ubuntu Security Notice USN-7720-1](https://ubuntu.com/security/notices/USN-7720-1) and the specific CVE references.
Future Considerations:
Given that Ubuntu 14.04 LTS has reached the end of its standard support life, users are encouraged to consider upgrading to a newer, supported version of Ubuntu to ensure ongoing security updates and improvements. This will provide access to the latest features, performance enhancements, and security patches, thereby improving overall system stability and security
Linux Kernel update for Ubuntu 14.04 LTS
A security issue affects Ubuntu 14.04 LTS due to several vulnerabilities in the Linux kernel. The issues include a use-after-free vulnerability caused by a race condition in the Unix domain socket, as well as flaws in the HID and media drivers subsystems (CVE-2021-0920, CVE-2024-50302, CVE-2024-53104).
[USN-7720-1] Linux kernel vulnerabilities