Function check_attachment_for_errors() in file data/general-hooks/ubuntu.py could be tricked into exposing private data via a constructed crash file. This issue affects: apport 2.14.1 versions prior to 2.14.1-0ubuntu3.29+esm8; 2.20.1 versions prior to 2.20.1-0ubuntu2.30+esm2; 2.20.9 versions prior to 2.20.9-0ubuntu7.26; 2.20.11 versions prior to 2.20.11-0ubuntu27.20; 2.20.11 versions prior to 2.20.11-0ubuntu65.3;
The product places sensitive information into files or directories that are accessible to actors who are allowed to have access to the files, but not to the sensitive information.
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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3709 | third party advisory |
| https://ubuntu.com/security/notices/USN-5077-1 | vendor advisory |
| https://ubuntu.com/security/notices/USN-5077-2 | vendor advisory |
| https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1934308 | vendor advisory exploit |