Ubuntu Linux has rolled out several critical security updates addressing vulnerabilities in WebKitGTK and the Linux kernel. These updates are essential for various Ubuntu releases, including 22.04 LTS, 24.04 LTS, and 25.04.
- Affected Releases:
- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Description: Multiple security vulnerabilities were identified within the WebKitGTK’s web and JavaScript engines, which could allow remote attackers to execute arbitrary code or conduct cross-site scripting attacks if users inadvertently visit malicious websites.
- Update Packages:
- Various updates to `libjavascriptcoregtk` and `libwebkit2gtk` across different Ubuntu versions are required.
- Users must restart applications that utilize WebKitGTK, such as the Epiphany browser, after applying updates.
- USN-7701-1 (August 19, 2025)
- USN-7703-1 (August 19, 2025)
- USN-7704-1 (August 20, 2025)
- USN-7704-2 (August 19, 2025)
- Affected Releases:
- Ubuntu 20.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 18.04 LTS
- Description: These updates address various security issues in the Linux kernel across multiple subsystems, including device drivers, network protocols, and cryptographic APIs, which could allow attackers to compromise system integrity.
- Update Packages:
- Users are advised to update kernel packages specific to their system architecture and version, including various images such as `linux-image-generic`, `linux-image-aws`, `linux-image-gcp`, and `linux-image-lowlatency`.
- Due to ABI changes, third-party kernel modules may need recompilation and reinstallation post-update.
- Users should note that Ubuntu Pro subscriptions may grant access to additional kernel updates and security features.
- For detailed information on the updates and to access the specific packages, users can refer to the provided links to Ubuntu's security notices.
This comprehensive approach to security updates reinforces the importance of maintaining up-to-date systems to safeguard users from potential threats
WebKitGTK Vulnerabilities
- Notice: USN-7702-1 (August 19, 2025)- Affected Releases:
- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Description: Multiple security vulnerabilities were identified within the WebKitGTK’s web and JavaScript engines, which could allow remote attackers to execute arbitrary code or conduct cross-site scripting attacks if users inadvertently visit malicious websites.
- Update Packages:
- Various updates to `libjavascriptcoregtk` and `libwebkit2gtk` across different Ubuntu versions are required.
- Users must restart applications that utilize WebKitGTK, such as the Epiphany browser, after applying updates.
Linux Kernel Vulnerabilities
- Notices:- USN-7701-1 (August 19, 2025)
- USN-7703-1 (August 19, 2025)
- USN-7704-1 (August 20, 2025)
- USN-7704-2 (August 19, 2025)
- Affected Releases:
- Ubuntu 20.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 18.04 LTS
- Description: These updates address various security issues in the Linux kernel across multiple subsystems, including device drivers, network protocols, and cryptographic APIs, which could allow attackers to compromise system integrity.
- Update Packages:
- Users are advised to update kernel packages specific to their system architecture and version, including various images such as `linux-image-generic`, `linux-image-aws`, `linux-image-gcp`, and `linux-image-lowlatency`.
Important Update Instructions
- After applying the updates, users must reboot their systems to ensure all changes take effect.- Due to ABI changes, third-party kernel modules may need recompilation and reinstallation post-update.
- Users should note that Ubuntu Pro subscriptions may grant access to additional kernel updates and security features.
Further Actions
- Users should regularly check for and install security updates to maintain system integrity and protect against vulnerabilities.- For detailed information on the updates and to access the specific packages, users can refer to the provided links to Ubuntu's security notices.
This comprehensive approach to security updates reinforces the importance of maintaining up-to-date systems to safeguard users from potential threats
WebKitGTK and Kernel updates for Ubuntu
Ubuntu Linux has received new security updates, including fixes for WebKitGTK and various Linux kernel updates:
[USN-7702-1] WebKitGTK vulnerabilities
[USN-7701-1] Linux kernel vulnerabilities
[USN-7704-1] Linux kernel vulnerabilities
[USN-7704-2] Linux kernel (FIPS) vulnerabilities
[USN-7703-1] Linux kernel vulnerabilities
