VDB
CVE-2020-12872
CVE-2020-12872
PUBLISHED
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 0.03% · 9.9th percentile
Risk Scores
EPSS Score
0.03%
9.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | yaws | 1.98-5, 2.0.2-1, 1.99-1 |
| Ubuntu:18.04:LTS | yaws | 2.0.4+dfsg-2, 2.0.4+dfsg-2ubuntu0.1, 0 |
| Ubuntu:20.04:LTS | yaws | 2.0.6+dfsg-1, 2.0.6+dfsg-3, 2.0.7+dfsg-1 |
| Ubuntu:22.04:LTS | yaws | *, 0, 2.0.8+dfsg-3 |
| Ubuntu:25.10 | yaws | 0, 2.2.0+dfsg-2 |
| Ubuntu:24.04:LTS | yaws | 2.1.1+dfsg-2, 0 |
Exploit Intelligence
- https://github.com/erlyaws/yaws/blob/c0fd79f17d52628fcec527da7fa3e788c283c445/src/yaws_config.erl#L2068-L2075 (nist-nvd)
- https://sweet32.info/ (circl)
- https://github.com/erlyaws/yaws/releases (circl)
- https://medium.com/%40charlielabs101/cve-2020-12872-df315411aa70 (circl)
- https://github.com/erlyaws/yaws/issues/402 (circl)
Timeline
- May 15, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-12872 third-party-advisory
- https://medium.com/@charlielabs101/cve-2020-12872-df315411aa70 third-party-advisory
- https://github.com/erlyaws/yaws/blob/c0fd79f17d52628fcec527da7fa3e788c283c445/src/yaws_config.erl#L2068-L2075 third-party-advisory
- https://github.com/erlyaws/yaws/releases third-party-advisory
- https://sweet32.info/ third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-12872 third-party-advisory