CVE
CVE-2020-15702
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.
- Severity
- HIGH
- CVSS
- 7
- Published
- Modified
Linked Releases
| Distribution | Release | Status | Evidence |
|---|---|---|---|
| Ubuntu | 20.04.6 amd64 desktop | unknown | source |
| Ubuntu | 20.04.6 amd64 live-server | unknown | source |
| Ubuntu | 18.04.6 amd64 desktop | unknown | source |
| Ubuntu | 18.04.6 amd64 live-server | unknown | source |
| Ubuntu | 16.04.7 amd64 desktop | unknown | source |
| Ubuntu | 16.04.6 i386 desktop | unknown | source |
| Ubuntu | 16.04.7 amd64 server | unknown | source |
| Ubuntu | 16.04.6 i386 server | unknown | source |
References
- https://usn.ubuntu.com/4449-1
- https://usn.ubuntu.com/4449-1/
- https://usn.ubuntu.com/4449-2/
- https://www.zerodayinitiative.com/advisories/ZDI-20-979/
- http://seclists.org/fulldisclosure/2025/Jun/9
- https://usn.ubuntu.com/4449-1
- https://usn.ubuntu.com/4449-1/
- https://usn.ubuntu.com/4449-2/
- https://www.zerodayinitiative.com/advisories/ZDI-20-979/