Multiple vulnerabilities were discovered in OpenSSL affecting Ubuntu 20.04 LTS, 22.04 LTS, and 24.04 LTS. These include improper handling of TLSv1.3 sessions under certain server configurations (CVE-2024-2511), incorrect checking of excessively long DSA keys or parameters (CVE-2024-4603), memory operation flaws in a rarely-used API that could lead to crashes or code execution (CVE-2024-4741), and improper handling of an API call with an empty client protocols buffer that could expose sensitive information or cause crashes (CVE-2024-5535). These issues can lead to denial of service or potentially arbitrary code execution. Fixed package versions have been released for all affected Ubuntu LTS versions.