Summary of Ubuntu Security Updates: RESTEasy and Linux Kernel Vulnerabilities

On July 10 and 11, 2025, security updates were released for Ubuntu addressing vulnerabilities in RESTEasy and the Linux kernel for Xilinx ZynqMP processors. These updates aim to enhance system security and prevent potential exploits from attackers.

RESTEasy Vulnerabilities [USN-7630-1]

RESTEasy, a framework for building RESTful web services in Java, had several security issues, particularly affecting Ubuntu versions 16.04 LTS through 25.04. The vulnerabilities include:

- Insufficient random value usage in asynchronous jobs (CVE-2016-6345).
- Default enabling of a vulnerable GZIP decompression module (CVE-2016-6346).
- Improper handling of unsanitized data during error management, potentially allowing for denial of service or code execution (CVE-2016-6347).
- Vulnerable JSON manipulation and deserialization modules leading to similar issues (CVE-2016-6348, CVE-2016-7050).
- Improper validation of user input during HTTP response construction (CVE-2020-1695).
- Improper handling of URL encoding and exception responses, which could expose sensitive information (CVE-2020-25633, CVE-2021-20289).
- Issues with temporary file permissions and handling of HTTP requests containing ASCII control characters (CVE-2023-0482, CVE-2024-9622).

To address these vulnerabilities, users are encouraged to update their systems to the specified package versions for their respective Ubuntu releases.

Linux Kernel Vulnerabilities [USN-7608-6]

The Linux kernel update for Xilinx ZynqMP processors on July 11, 2025, addressed multiple security flaws that could allow attackers to compromise systems running Ubuntu 22.04 LTS. Key areas affected include:

- GPU drivers
- SMB network file systems
- Memory management
- Netfilter
- Network traffic control

The update requires users to reboot their systems post-update and recompute third-party kernel modules due to an ABI change that necessitates recompilation.

Recommendations

Users of affected Ubuntu versions should perform a standard system update to install the latest security patches. It is crucial to reboot the system after applying the kernel updates to ensure all changes take effect.

Conclusion

These updates underscore the importance of maintaining current software versions to safeguard against vulnerabilities. Regular updates and system checks are essential practices for enhancing security on any platform.

For more detailed information about the vulnerabilities and instructions for updates, users can refer to the official Ubuntu security notices linked above

RESTEasy and Linux kernel (Xilinx ZynqMP) updates for Ubuntu

Ubuntu Linux has been updated with security enhancements, addressing RESTEasy vulnerabilities and vulnerabilities within the Linux kernel (Xilinx ZynqMP):

[USN-7630-1] RESTEasy vulnerabilities
[USN-7608-6] Linux kernel (Xilinx ZynqMP) vulnerabilities

RESTEasy and Linux kernel (Xilinx ZynqMP) updates for Ubuntu @ Linux Compatible