fr-archive-libarchive.c in GNOME file-roller through 3.36.1 allows Directory Traversal during extraction because it lacks a check of whether a file's parent is a symlink to a directory outside of the intended extraction location. Reference and upstream commit: https://gitlab.gnome.org/GNOME/file-roller/-/commit/21dfcdbfe258984db89fb65243a1a888924e45a0
Created file-roller tracking bugs for this issue: Affects: fedora-all [bug 1824990]
There's an issue with file-roller, during archive extraction the function extract_archive_thread() doesn't check whether a existing symlink expands to outside extracting path. This weakness can be leveraged by an attacker crafting a malicious archive file containing a determined symbolic link structure, allowing files outside the extraction directory to be overwritten. A well succeeded attack depends on User Interaction by opening and extracting the malicious archive file. The attack has a Low Integrity impact as file creation and overwritten is restricted only to the paths user has permissions to write. It may be a Low Availability impact depending on which files are overwritten.
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-11736
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4820 https://access.redhat.com/errata/RHSA-2020:4820