CVE-2020-11936

This vulnerability allows local attackers to disclose sensitive information on affected installations of Canonical Ubuntu. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the apport package. The issue results from the use of unnecessary privileges. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute code in the context of root.

Ryota Shiga discovered that Apport incorrectly dropped privileges when making certain D-Bus calls. A local attacker could use this issue to read arbitrary files. Seong-Joong Kim discovered that Apport incorrectly parsed configuration files. A local attacker could use this issue to cause Apport to crash, resulting in a denial of service. Ryota Shiga discovered that Apport incorrectly implemented certain checks. A local attacker could use this issue to escalate privileges and run arbitrary code. Various other issues were also addressed.