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Bug 1388371 - (CVE-2016-8616) CVE-2016-8616 curl: Case insensitive password comparison
CVE-2016-8616 curl: Case insensitive password comparison
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20161102,reported=2...
: Security
Depends On: 1390896 1390894 1390895
Blocks: 1388393
  Show dependency tree / graph
 
Reported: 2016-10-25 04:13 EDT by Andrej Nemec
Modified: 2018-08-16 12:07 EDT (History)
31 users (show)

See Also:
Fixed In Version: curl 7.51.0
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
Upstream patch (2.38 KB, patch)
2016-10-25 04:53 EDT, Andrej Nemec 		no flags Details | Diff
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2486 None None None 2018-08-16 12:07 EDT

  None (edit)
Description Andrej Nemec 2016-10-25 04:13:35 EDT 
When re-using a connection, curl was doing case insensitive comparisons of
user name and password with the existing connections.

This means that if an unused connection with proper credentials exists for a
protocol that has connection-scoped credentials, an attacker can cause that
connection to be reused if s/he knows the case-insensitive version of the
correct password.

External References:

https://curl.haxx.se/docs/adv_20161102B.html
Comment 1 Andrej Nemec 2016-10-25 04:53 EDT 
Created attachment 1213770 [details]
Upstream patch
Comment 2 Adam Mariš 2016-11-02 04:26:06 EDT 
Created curl tracking bugs for this issue:

Affects: fedora-all [bug 1390894]
Comment 3 Adam Mariš 2016-11-02 04:26:19 EDT 
Created mingw-curl tracking bugs for this issue:

Affects: fedora-all [bug 1390895]
Affects: epel-7 [bug 1390896]
Comment 4 Stefan Cornelius 2016-11-02 06:50:38 EDT 
I want to point out again that this is only a problem if the attacker already knows a case-insensitive version of the password, which is a bigger problem in itself.
Comment 7 errata-xmlrpc 2018-08-16 12:06:56 EDT 
This issue has been addressed in the following products:

  Red Hat JBoss Core Services

Via RHSA-2018:2486 https://access.redhat.com/errata/RHSA-2018:2486
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