Bug 1388371 (CVE-2016-8616) - CVE-2016-8616 curl: Case insensitive password comparison
Summary: CVE-2016-8616 curl: Case insensitive password comparison
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-8616
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=low,public=20161102,reported=2...
Depends On: 1390896 1390894 1390895
Blocks: 1388393
TreeView+ depends on / blocked
 
Reported: 2016-10-25 08:13 UTC by Andrej Nemec
Modified: 2019-08-26 14:39 UTC (History)
29 users (show)

Fixed In Version: curl 7.51.0
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-06-08 03:00:52 UTC


Attachments (Terms of Use)
Upstream patch (2.38 KB, patch)
2016-10-25 08:53 UTC, Andrej Nemec
no flags Details | Diff


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2486 None None None 2018-08-16 16:07:09 UTC
Red Hat Product Errata RHSA-2018:3558 None None None 2018-11-13 08:32:59 UTC

Description Andrej Nemec 2016-10-25 08:13:35 UTC
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 08:53:33 UTC
Created attachment 1213770 [details]
Upstream patch

Comment 2 Adam Mariš 2016-11-02 08:26:06 UTC
Created curl tracking bugs for this issue:

Affects: fedora-all [bug 1390894]

Comment 3 Adam Mariš 2016-11-02 08:26:19 UTC
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 10:50:38 UTC
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 16:06:56 UTC
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

Comment 8 errata-xmlrpc 2018-11-13 08:32:45 UTC
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS

Via RHSA-2018:3558 https://access.redhat.com/errata/RHSA-2018:3558


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