What is CVE-2020-28638?

CVE-2020-28638 is a critical-severity vulnerability in Dyne Tomb, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-11-13.

How severe is CVE-2020-28638?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Dyne Tomb

CVE-2020-28638

ask_password in Tomb 2.0 through 2.7 returns a warning when pinentry-curses is used and $DISPLAY is non-empty, causing affected users' files to be encrypted with "tomb {W] Detected DISPLAY, but only pinentry-curses is found." as the encryption key.

Vulnerability class: Broken Authentication

EPSS: 0.007 (49.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dyne Tomb
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2020-28638?: CVE-2020-28638 is a critical-severity vulnerability in Dyne Tomb, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-11-13.
How severe is CVE-2020-28638?: Critical severity. CVSS v3 base score is 9.8 out of 10.