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CVE-2019-5021 is a critical severity vulnerability with a CVSS score of 9.8. No known exploits currently, and patches are available.
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Lower probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
Versions of the Official Alpine Linux Docker images (since v3.3) contain a NULL password for the root user. This vulnerability appears to be the result of a regression introduced in December of 2015. Due to the nature of this issue, systems deployed using affected versions of the Alpine Linux container which utilize Linux PAM, or some other mechanism which uses the system shadow file as an authentication database, may accept a NULL password for the root user.
| Vendor | Product |
|---|---|
| Alpinelinux | Alpine Linux |
| F5 | Big IP Controller |
| Gliderlabs | Docker Alpine |
| Opensuse | Leap |