Bug 1469976 (CVE-2017-11103) - CVE-2017-11103 krb5: Metadata taken from the unauthenticated plaintext
Summary: CVE-2017-11103 krb5: Metadata taken from the unauthenticated plaintext
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-11103
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1469998
Blocks: 1469977
TreeView+ depends on / blocked
 
Reported: 2017-07-12 08:02 UTC by Andrej Nemec
Modified: 2021-02-17 01:57 UTC (History)
41 users (show)

Fixed In Version:
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Last Closed: 2017-07-12 08:26:31 UTC
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Description Andrej Nemec 2017-07-12 08:02:31 UTC 
A vulnerability was found in several independently developed implementations of Kerberos which caused that metadata were taken from the unauthenticated plaintext (the Ticket) rather than the authenticated and encrypted KDC response.

Proposed patch:

https://github.com/heimdal/heimdal/commit/6dd3eb836bbb80a00ffced4ad57077a1cdf227ea
Comment 1 Andrej Nemec 2017-07-12 08:04:38 UTC 
External References:

https://www.orpheus-lyre.info/
Comment 2 Huzaifa S. Sidhpurwala 2017-07-12 08:26:31 UTC 
Statement:

This issue does not affect the version of MIT Kerberos implementation as shipped with Red Hat Enterprise Linux. This issue also does not affect the version of Samba as shipped with Red Hat Enterprise Linux.
Comment 3 Andrej Nemec 2017-07-12 09:01:43 UTC 
Created heimdal tracking bugs for this issue:

Affects: fedora-all [bug 1469998]
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