CVE-2020-14352 – librepo: missing path validation in repomd.xml may lead to directory traversal

https://notcve.org/view.php?id=CVE-2020-14352

A flaw was found in librepo in versions before 1.12.1. A directory traversal vulnerability was found where it failed to sanitize paths in remote repository metadata. An attacker controlling a remote repository may be able to copy files outside of the destination directory on the targeted system via path traversal. This flaw could potentially result in system compromise via the overwriting of critical system files. The highest threat from this flaw is to users that make use of untrusted third-party repositories. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00072.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00055.html https://bugzilla.redhat.com/show_bug.cgi?id=1866498 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33RX4P5R5YL4NZSFSE4NOX37X6YCXAS4 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OOMDEQBRJ7SO2QWL7H23G3VV2VSCUYOY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org&# • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •