CVE-2020-15702
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Canonical | apport | 2.20.1 < 2.20.1-0ubuntu2.24 | affected |
| Canonical | apport | 2.20.9 < 2.20.9-0ubuntu7.16 | affected |
| Canonical | apport | 2.20.11 < 2.20.11-0ubuntu27.6 | affected |
Weaknesses
- CWE-367: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
ADP Enrichment
CVE Program Container
Additional References
- https://usn.ubuntu.com/4449-1
- https://usn.ubuntu.com/4449-1/
- https://www.zerodayinitiative.com/advisories/ZDI-20-979/
- https://usn.ubuntu.com/4449-2/
- http://seclists.org/fulldisclosure/2025/Jun/9
References
- https://usn.ubuntu.com/4449-1
- https://usn.ubuntu.com/4449-1/
- https://www.zerodayinitiative.com/advisories/ZDI-20-979/
- https://usn.ubuntu.com/4449-2/
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