Vulnerability 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.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Apport | < 2.21.0 |
| Canonical | Ubuntu Linux | 18.04 |
Related Weaknesses (CWE)
References
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376Issue TrackingPatch
- https://ubuntu.com/security/notices/USN-5427-1Vendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3899Third Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376Issue TrackingPatch
- https://ubuntu.com/security/notices/USN-5427-1Vendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3899Third Party Advisory
FAQ
What is CVE-2021-3899?
CVE-2021-3899 is a vulnerability with a CVSS score of 7.8 (HIGH). 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.
How severe is CVE-2021-3899?
CVE-2021-3899 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3899?
Check the references section above for vendor advisories and patch information. Affected products include: Canonical Apport, Canonical Ubuntu Linux.