Ubuntu Security Update USN-5020-1: Ruby vulnerabilities

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It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2021-31799) It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to conduct port scans and service banner extractions. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-31810) It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to perform man-in-the-middle attackers to bypass the TLS protection. (CVE-2021-32066)

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