Bug 1039917

Summary:	CVE-2013-7040 python: hash secret can be recovered remotely [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Ratul Gupta <ratulg>
Component:	python	Assignee:	Bohuslav "Slavek" Kabrda <bkabrda>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	19	CC:	bkabrda, dac, dmalcolm, ivazqueznet, jonathansteffan, mstuchli, sparks, tomspur, tradej
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	fst_owner=dcafaro
Fixed In Version:		Doc Type:	Release Note
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-09-16 01:46:31 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1039915

Description Ratul Gupta 2013-12-10 10:15:25 UTC

This is an automatically created tracking bug!  It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.

For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.

For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs

When creating a Bodhi update request, please use the bodhi submission link
noted in the next comment(s).  This will include the bug IDs of this
tracking bug as well as the relevant top-level CVE bugs.

Please also mention the CVE IDs being fixed in the RPM changelog and the
Bodhi notes field when available.

Please note: this issue affects multiple supported versions of Fedora.
Only one tracking bug has been filed; please ensure that it is only closed
when all affected versions are fixed.

[bug automatically created by: add-tracking-bugs]

Comment 1 Ratul Gupta 2013-12-10 10:15:39 UTC

Please use the following update submission link to create the Bodhi
request for this issue as it contains the top-level parent bug(s) as well
as this tracking bug.  This will ensure that all associated bugs get
updated when new packages are pushed to stable.

Please also ensure that the "Close bugs when update is stable" option
remains checked.

Bodhi update submission link:
https://admin.fedoraproject.org/updates/new/?type_=security&bugs=1039915,1039917

Comment 3 David A. Cafaro 2014-08-17 03:10:58 UTC

Whiteboard: fst_owner=dcafaro

Comment 4 David A. Cafaro 2014-09-16 01:46:31 UTC

The fix for this has been deemed to intrusive and complicated to back port.  Upstream is not releasing a back port patch for this.  Please see related tickets for details:

http://bugs.python.org/issue14621

https://bugzilla.redhat.com/show_bug.cgi?id=1039915

Proposed workaround is:

"Python applications should validate the length/size of the data before storing the data in hash tables or dictionaries this should stop most of the hash-collision related denial of service attacks."