Is CVE-2021-20199 in the CISA KEV catalog?

No. CVE-2021-20199 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-20199?

CVE-2021-20199 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2021-20199?

CVE-2021-20199 has an EPSS score of 1.10% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-20199?

Upgrade libpod on debian 11 to 3.0.0~rc2+dfsg1-2 or later.

CVE & CISA-KEV Catalog

CVE-2021-20199

MEDIUM

5.9

CVSS v3

NVD

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.

CWE-346

How to fix

Remediation Available

libpodDebian

Fixed in:3.0.0~rc2+dfsg1-2CVE-2021-20199

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

1.10%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Patch2

Exploit1

github.com

Third-Party Advisory1

bugzilla.redhat.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.