Arch Linux Security Advisory ASA-201711-27 ========================================== Severity: High Date : 2017-11-21 CVE-ID : CVE-2017-16651 Package : roundcubemail Type : arbitrary filesystem access Remote : Yes Link : https://security.archlinux.org/AVG-506 Summary ======= The package roundcubemail before version 1.3.3-1 is vulnerable to arbitrary filesystem access. Resolution ========== Upgrade to 1.3.3-1. # pacman -Syu "roundcubemail>=1.3.3-1" The problem has been fixed upstream in version 1.3.3. Workaround ========== None. Description =========== Roundcube Webmail 1.3.x before 1.3.3 allows unauthorized access to arbitrary files on the host's filesystem, including configuration files, as exploited in the wild in November 2017. The attacker must be able to authenticate at the target system with a valid username/password as the attack requires an active session. The issue is related to file-based attachment plugins and _task=settings&_action=upload-display&_from=timezone requests. Impact ====== A remote authenticated non-admin user is able to read arbitrary files on the affected host. References ========== https://github.com/roundcube/roundcubemail/commit/c90ad5a97784fb32683b8e3c21... https://github.com/roundcube/roundcubemail/issues/6026 https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.1... https://security.archlinux.org/CVE-2017-16651