7.0
High
CVE-2020-15702 TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| apport 2.20 | 2.20.1 → < 2.20.11-0ubuntu27.6 | 2.20.1-0ubuntu2.24 |
References
- usn.ubuntu.com usn.ubuntu.com
- USN-4449-1 usn.ubuntu.com
- www.zerodayinitiative.com www.zerodayinitiative.com
- USN-4449-2 usn.ubuntu.com
Timeline
- Published
- Last modified
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