USN-3156-1 introduced a regression in unattended-upgrades that may requiremanual intervention to repair.. =========================================================================Ubuntu Security Notice USN-3156-2 December 17, 2016 apt regression ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.10 Summary: USN-3156-1 introduced a regression in unattended-upgrades that may require manual intervention to repair. Software Description: - apt: Advanced front-end for dpkg Details: USN-3156-1 fixed vulnerabilities in APT. It also caused a bug in unattended-upgrades on that may require manual intervention to repair. Users on Ubuntu 16.10 should run the following commands at a terminal: sudo dpkg --configure --pending sudo apt-get -f install This update fixes the problem. We apologize for the inconvenience. Original advisory details: Jann Horn discovered that APT incorrectly handled InRelease files. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.10: apt 1.3.3 After a standard system update you should run the following commands to make all the necessary changes: sudo dpkg --configure --pending sudo apt-get -f install References: https://ubuntu.com/security/notices/USN-3156-2 https://ubuntu.com/security/notices/USN-3156-1 https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1649959 Package Information: https://launchpad.net/ubuntu/+source/apt/1.3.3 . A vulnerability in Ubuntu's package manager brought about a problem that necessitated manual steps to resolve the unattended-upgrades issue.. Ubuntu Apt Issue, Unattended Upgrades, Software Update. . LinuxSecurity.com Team
It was discovered that unattended-upgrades, a script for automatic installation of security upgrades, did not properly authenticate downloaded packages when the force-confold or force-confnew dpkg options were enabled via the DPkg::Options::* apt configuration. . - ------------------------------------------------------------------------- Debian Security Advisory DSA-3297-1
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