Bug 1839815 (CVE-2020-12872) - CVE-2020-12872 yaws: yaws_config.erl loads obsolete TLS ciphers
Summary: CVE-2020-12872 yaws: yaws_config.erl loads obsolete TLS ciphers
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-12872
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1839816 1839817
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-05-25 16:26 UTC by Pedro Sampaio
Modified: 2020-05-25 21:15 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2020-05-25 21:15:22 UTC
Embargoed:

Attachments (Terms of Use)

Description Pedro Sampaio 2020-05-25 16:26:51 UTC 
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. 

References:

https://github.com/erlyaws/yaws/blob/c0fd79f17d52628fcec527da7fa3e788c283c445/src/yaws_config.erl#L2068-L2075
https://github.com/erlyaws/yaws/releases
https://medium.com/@charlielabs101/cve-2020-12872-df315411aa70
https://sweet32.info/
Comment 1 Pedro Sampaio 2020-05-25 16:27:21 UTC 
Created yaws tracking bugs for this issue:

Affects: epel-7 [bug 1839817]
Affects: fedora-all [bug 1839816]
Comment 2 Product Security DevOps Team 2020-05-25 21:15:22 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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