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Ubuntu Security Notice USN-5447-1
Ubuntu Security Notice 5447-1 - It was discovered that logrotate incorrectly handled the state file. A local attacker could possibly use this issue to keep a lock on the state file and cause logrotate to stop working, leading to a denial of service.
==========================================================================Ubuntu Security Notice USN-5447-1May 26, 2022logrotate vulnerability==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 22.04 LTS- Ubuntu 21.10Summary:logrotate could be made to stop processing log files.Software Description:- logrotate: Log rotation utilityDetails:It was discovered that logrotate incorrectly handled the state file. Alocal attacker could possibly use this issue to keep a lock on the statefile and cause logrotate to stop working, leading to a denial of service.Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 22.04 LTS: logrotate 3.19.0-1ubuntu1.1Ubuntu 21.10: logrotate 3.18.0-2ubuntu1.1In general, a standard system update will make all the necessary changes.References: https://ubuntu.com/security/notices/USN-5447-1 CVE-2022-1348Package Information: https://launchpad.net/ubuntu/+source/logrotate/3.19.0-1ubuntu1.1 https://launchpad.net/ubuntu/+source/logrotate/3.18.0-2ubuntu1.1Related news
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A vulnerability was found in logrotate in how the state file is created. The state file is used to prevent parallel executions of multiple instances of logrotate by acquiring and releasing a file lock. When the state file does not exist, it is created with world-readable permission, allowing an unprivileged user to lock the state file, stopping any rotation. This flaw affects logrotate versions before 3.20.0.