VDB
CVE-2020-15702
CVE-2020-15702
PUBLISHED
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.
EPSS 0.04% · 13.9th percentile
Risk Scores
EPSS Score
0.04%
13.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | apport | 2.19.4-0ubuntu1, 2.20.1-0ubuntu2.17, 2.20.1-0ubuntu2.16 |
| Ubuntu:20.04:LTS | apport | 2.20.11-0ubuntu27.3, 2.20.11-0ubuntu27.4, 2.20.11-0ubuntu21 |
| Ubuntu:Pro:14.04:LTS | apport | 2.14.1-0ubuntu3.25, 2.12.7-0ubuntu1, 2.12.7-0ubuntu2 |
| Ubuntu:18.04:LTS | apport | 2.20.9-0ubuntu7.6, 2.20.8-0ubuntu9, 2.20.9-0ubuntu2 |
Exploit Intelligence
- http://seclists.org/fulldisclosure/2025/Jun/9 (circl)
- https://usn.ubuntu.com/4449-1 (circl)
- USN-4449-1 (circl)
- https://www.zerodayinitiative.com/advisories/ZDI-20-979/ (circl)
- USN-4449-2 (circl)
Timeline
- Aug 4, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-15702 third-party-advisory
- https://ubuntu.com/security/notices/USN-4449-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4449-2 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-15702 third-party-advisory