Vulnerability in Yaws

CVE-2020-12872

yaws_config.erl in Yaws through 2.0.2 and/or 2.0.7 loads obsolete TLS ciphers, as demonstrated by ones that allow Sweet32 attacks, if running on an Erlang/OTP virtual machine with a version less than 21.0.

EPSS: 0.004 (31.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

  • Yaws
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-12872?
CVE-2020-12872 is a medium-severity vulnerability in Yaws, classified under Inadequate Encryption Strength. CVSS score: 5.5/10. Published 2020-05-15.
How severe is CVE-2020-12872?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-12872 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.