CVE-2020-15702
Fixed in a distro release EPSS <1%CVSS 7.0
TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code. An attacker may exit the crashed process and exploit PID recycling to spawn a root process with the same PID as the crashed process, which can then be used to escalate privileges. Fixed in 2.20.1-0ubuntu2.24, 2.20.9 versions prior to 2.20.9-0ubuntu7.16 and 2.20.11 versions prior to 2.20.11-0ubuntu27.6. Was ZDI-CAN-11234.
Products: Canonical apport
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu 16.04 LTS | apport | 2.20.1-0ubuntu2.24 |
| Ubuntu 18.04 LTS | apport | 2.20.9-0ubuntu7.16 |
| Ubuntu 20.04 LTS | apport | 2.20.11-0ubuntu27.6 |
| Ubuntu Pro 14.04 LTS | apport | 2.14.1-0ubuntu3.29+esm5 |