CVEvulnerability
CVE-2021-3899
7.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2024-06-03
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-367
Description
There is a race condition in the 'replaced executable' detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root.
Affected configurations
• canonical apport (< 2.21.0)
• canonical ubuntu linux 18.04
• canonical ubuntu linux 20.04
• canonical ubuntu linux 21.10
• canonical ubuntu linux 22.04
Related
Weakness · CWE (1)
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition weakness
References
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376 Issue Tracking, Patch
- https://ubuntu.com/security/notices/USN-5427-1 Vendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3899 Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376 Issue Tracking, Patch
- https://ubuntu.com/security/notices/USN-5427-1 Vendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3899 Third Party Advisory