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: 1839817 1839816
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:
Doc Type: If docs needed, set a value
Doc Text:
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.


Note You need to log in before you can comment on or make changes to this bug.