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.
Published: 2020-08-06
Score: 7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-7689 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.
Ubuntu USN Ubuntu USN USN-4449-1 Apport vulnerabilities
Ubuntu USN Ubuntu USN USN-4449-2 Apport vulnerabilities
History

Mon, 03 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Subscriptions

Canonical Apport Ubuntu Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2025-11-03T19:25:30.971Z

Reserved: 2020-07-14T00:00:00.000Z

Link: CVE-2020-15702

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-08-06T23:15:11.750

Modified: 2025-11-03T20:15:44.883

Link: CVE-2020-15702

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses