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.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
| Link | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1866498 | issue tracking third party advisory patch |
| http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00072.html | mailing list third party advisory patch |
| http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00055.html | mailing list third party advisory vendor advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OOMDEQBRJ7SO2QWL7H23G3VV2VSCUYOY/ | vendor advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33RX4P5R5YL4NZSFSE4NOX37X6YCXAS4/ | vendor advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XDMHVY7OMIJNSPVZ2GJWHT77Z5V3YJ55/ | vendor advisory |