apport: TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code
CVE-2020-15702 is fixed in 11 products on 1 platform, first by apport 2.20.9-0ubuntu7.16, released August 4, 2020. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| apport · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | apport 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| apport · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | apport 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| apport-gtk · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | apport-gtk 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| apport-gtk · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | apport-gtk 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| apport-kde · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | apport-kde 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| apport-kde · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | apport-kde 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| apport-noui · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | apport-noui 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| apport-noui · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | apport-noui 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| apport-retrace · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | apport-retrace 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| apport-retrace · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | apport-retrace 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| apport-valgrind · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | apport-valgrind 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| apport-valgrind · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | apport-valgrind 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| dh-apport · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | dh-apport 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| dh-apport · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | dh-apport 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| python-apport · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | python-apport 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| python-problem-report · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | python-problem-report 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| python3-apport · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | python3-apport 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| python3-apport · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | python3-apport 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
| python3-problem-report · Ubuntu 18.04.6 LTS (bionic) | 2.20.9-0ubuntu7.16 | python3-problem-report 2.20.9-0ubuntu7.16 | Aug 4, 2020 |
| python3-problem-report · Ubuntu 20.04 LTS (focal) | 2.20.11-0ubuntu27.6 | python3-problem-report 2.20.11-0ubuntu27.6 | Aug 4, 2020 |
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