CVE-2021-3899

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.55%
Vendor Advisory ubuntu.com
Affected: Canonical Ltd. Apport
Published at:
Updated at:

References

Link Tags
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376 issue tracking
https://ubuntu.com/security/notices/USN-5427-1 vendor advisory
https://www.cve.org/CVERecord?id=CVE-2021-3899 issue tracking

Frequently Asked Questions

What is the severity of CVE-2021-3899?
CVE-2021-3899 has been scored as a high severity vulnerability.
How to fix CVE-2021-3899?
To fix CVE-2021-3899, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3899 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3899 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3899?
CVE-2021-3899 affects Canonical Ltd. Apport.
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