CVE-2021-21296

Denial-of-service in Fleet

Description

Fleet is an open source osquery manager. In Fleet before version 3.7.0 a malicious actor with a valid node key can send a badly formatted request that causes the Fleet server to exit, resulting in denial of service. This is possible only while a live query is currently ongoing. We believe the impact of this vulnerability to be low given the requirement that the actor has a valid node key. There is no information disclosure, privilege escalation, or code execution. The issue is fixed in Fleet 3.7.0.

Category

2.7
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.57%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory npmjs.com
Affected: fleetdm fleet
Published at:
Updated at:

References

Link Tags
https://github.com/fleetdm/fleet/security/advisories/GHSA-xwh8-9p3f-3x45 third party advisory
https://www.npmjs.com/package/fleetctl third party advisory product
https://github.com/fleetdm/fleet/commit/f68f4238e83b45b2164e4ed05df14af0f06eaf40 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-21296?
CVE-2021-21296 has been scored as a low severity vulnerability.
How to fix CVE-2021-21296?
To fix CVE-2021-21296, 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-2021-21296 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-21296 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-2021-21296?
CVE-2021-21296 affects fleetdm fleet.
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