UNIX symbolic link following in apport (Ubuntu package) - CVE-2019-11483
Published: November 5, 2019
Vulnerability identifier: #VU22531
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-11483
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Canonical Ltd.
Affected software:
apport (Ubuntu package)
apport (Ubuntu package)
Detailed vulnerability description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to the Apport mishandles crash dumps originating from
containers. A local user can trigger a crush dump for a controlled container and force the Apport to generate a report for a privileged process.
How to mitigate CVE-2019-11483
Update the affected packages.
- Ubuntu 19.10
- apport - 2.20.11-0ubuntu8.2
- python-apport - 2.20.11-0ubuntu8.2
- python3-apport - 2.20.11-0ubuntu8.2
- Ubuntu 19.04
- apport - 2.20.10-0ubuntu27.3
- python-apport - 2.20.10-0ubuntu27.3
- python3-apport - 2.20.10-0ubuntu27.3
- Ubuntu 18.04 LTS
- apport - 2.20.9-0ubuntu7.9
- python-apport - 2.20.9-0ubuntu7.9
- python3-apport - 2.20.9-0ubuntu7.9
- Ubuntu 16.04 LTS
- apport - 2.20.1-0ubuntu2.21
- python-apport - 2.20.1-0ubuntu2.21
- python3-apport - 2.20.1-0ubuntu2.21