========================================================================== Ubuntu Security Notice USN-7749-1 September 15, 2025
libcpanel-json-xs-perl vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Cpanel-JSON-XS could be made to crash if it parsed specially crafted JSON. Software Description: - libcpanel-json-xs-perl: module for fast and correct serialising to JSON Details: It was discovered that Cpanel-JSON-XS incorrectly handled parsing certain JSON data. An attacker could possibly use this issue to cause Cpanel-JSON-XS to crash, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.04 libcpanel-json-xs-perl 4.39-1ubuntu0.1 Ubuntu 24.04 LTS libcpanel-json-xs-perl 4.37-1ubuntu0.1 Ubuntu 22.04 LTS libcpanel-json-xs-perl 4.27-1ubuntu0.2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7749-1 CVE-2025-40929 Package Information: https://launchpad.net/ubuntu/+source/libcpanel-json-xs-perl/4.39-1ubuntu0.1 https://launchpad.net/ubuntu/+source/libcpanel-json-xs-perl/4.37-1ubuntu0.1 https://launchpad.net/ubuntu/+source/libcpanel-json-xs-perl/4.27-1ubuntu0.2
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