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Ubuntu 24.04: USN-7752-1 libyang2 Critical Denial Of Service CVE-2023-26916

libyang could be made to crash if it received specially crafted input.. ========================================================================== Ubuntu Security Notice USN-7752-1 September 16, 2025 libyang2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS Summary: libyang could be made to crash if it received specially crafted input. Software Description: - libyang2: parser toolkit for IETF YANG data modeling Details: It was discovered that libyang incorrectly handled certain memory operations when parsing YANG strings. An attacker could possibly use this issue to cause libyang 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 24.04 LTS libyang2t64 2.1.30-2.1ubuntu0.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7752-1 CVE-2023-26916, CVE-2023-26917 Package Information: . Debian Security Advisory DSA-4849-1 tackles libyang1 issues with enhancements to mitigate potential system instability caused by specially constructed data entries.. libyang2 Security, Denial Of Service, Ubuntu Update. . Severity: Critical. LinuxSecurity.com Team

Sep 16, 2025 •Critical Ubuntu