CVE-2021-20199

Public Exploit

Description

Rootless containers run with Podman, receive all traffic with a source IP address of 127.0.0.1 (including from remote hosts). This impacts containerized applications that trust localhost (127.0.01) connections by default and do not require authentication. This issue affects Podman 1.8.0 onwards.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.45%
Third-Party Advisory redhat.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a podman
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1919050 third party advisory issue tracking
https://github.com/containers/podman/issues/5138 third party advisory exploit
https://github.com/rootless-containers/rootlesskit/pull/206 third party advisory patch
https://github.com/containers/podman/pull/9052 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-20199?
CVE-2021-20199 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20199?
To fix CVE-2021-20199, 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-2021-20199 being actively exploited in the wild?
It is possible that CVE-2021-20199 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20199?
CVE-2021-20199 affects n/a podman.
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