Ubuntu Security Update USN-6334-1: atftp vulnerabilities

[LinuxBot]

Peter Wang discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp request to the server to cause a crash. (CVE-2020-6097) Andreas B. Mundt discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp request to the server to cause a crash. (CVE-2021-41054) Johannes Krupp discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp request to the server and make the server to disclose /etc/group data. (CVE-2021-46671)

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