========================================================================== Ubuntu Security Notice USN-4263-1 February 03, 2020
sudo vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Sudo could allow unintended access to the administrator account. Software Description: - sudo: Provide limited super user privileges to specific users Details: Joe Vennix discovered that Sudo incorrectly handled memory operations when the pwfeedback option is enabled. A local attacker could possibly use this issue to obtain unintended access to the administrator account. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10: sudo 1.8.27-1ubuntu4.1 sudo-ldap 1.8.27-1ubuntu4.1 Ubuntu 18.04 LTS: sudo 1.8.21p2-3ubuntu1.2 sudo-ldap 1.8.21p2-3ubuntu1.2 Ubuntu 16.04 LTS: sudo 1.8.16-0ubuntu1.9 sudo-ldap 1.8.16-0ubuntu1.9 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4263-1 CVE-2019-18634 Package Information: https://launchpad.net/ubuntu/+source/sudo/1.8.27-1ubuntu4.1 https://launchpad.net/ubuntu/+source/sudo/1.8.21p2-3ubuntu1.2 https://launchpad.net/ubuntu/+source/sudo/1.8.16-0ubuntu1.9
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