Bug 1315747 – CVE-2016-2146 mod_auth_mellon: Failure to limit amount of POST data submitted by client

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Bug 1315747 - (CVE-2016-2146) CVE-2016-2146 mod_auth_mellon: Failure to limit amount of POST data submitted by client

Summary:	CVE-2016-2146 mod_auth_mellon: Failure to limit amount of POST data submitted...

Status:	CLOSED WONTFIX

Aliases:	CVE-2016-2146

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20160309,repor...
Keywords:	Security

Depends On:	1316296
Blocks:	1315749
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Reported:	2016-03-08 09:07 EST by Adam Mariš
Modified:	2016-03-19 22:29 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-03-10 01:00:01 EST
Type:	---
Regression:	---
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Documentation:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Adam Mariš 2016-03-08 09:07:06 EST

It was reported that am_read_post_data() failed to limit the amount of POST data submitted by
the client. If the memory allocation for reading the POST data fails, we will get a null pointer dereference when we try to load data into it. If the memory allocation succeeds, we will slowly fill up available memory with post data from the client, causing resource exhaustion.

Upstream bug:

https://github.com/UNINETT/mod_auth_mellon/pull/71

Comment 1 Adam Mariš 2016-03-08 09:07:13 EST

Acknowledgments:

Name: Olav Morken (Uninett)
Upstream: Vincent Rasneur

Comment 2 Adam Mariš 2016-03-08 09:08:12 EST

Note that fixing commit is the same as for CVE-2016-2145.

Comment 3 Garth Mollett 2016-03-09 17:10:35 EST

Public via:
https://sympa.uninett.no/lists/uninett.no/arc/modmellon/2016-03/msg00000.html

Comment 4 Garth Mollett 2016-03-09 17:12:47 EST

Created mod_auth_mellon tracking bugs for this issue:

Affects: fedora-all [bug 1316296]

Comment 6 Fedora Update System 2016-03-19 22:29:22 EDT

mod_auth_mellon-0.11.1-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

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