Directory Traversal Affecting apport package, versions <2.14.1-0ubuntu3.23
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1404-APPORT-369324
- published17 Dec 2016
- disclosed17 Dec 2016
Introduced: 17 Dec 2016
CVE-2016-9950 (opens in a new tab)How to fix?
Upgrade Ubuntu:14.04 apport to version 2.14.1-0ubuntu3.23 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream apport package and not the apport package as distributed by Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
An issue was discovered in Apport before 2.20.4. There is a path traversal issue in the Apport crash file "Package" and "SourcePackage" fields. These fields are used to build a path to the package specific hook files in the /usr/share/apport/package-hooks/ directory. An attacker can exploit this path traversal to execute arbitrary Python files from the local system.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-9950
- https://www.exploit-db.com/exploits/40937/
- https://bugs.launchpad.net/apport/+bug/1648806
- https://donncha.is/2016/12/compromising-ubuntu-desktop/
- https://github.com/DonnchaC/ubuntu-apport-exploitation
- http://www.securityfocus.com/bid/95011
- http://www.ubuntu.com/usn/USN-3157-1