Bug 1439548 (CVE-2015-9019)

Summary:	CVE-2015-9019 libxslt: math.random() in xslt uses unseeded randomness
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	amuller, aortega, apevec, ayoung, bhu, chrisw, cvsbot-xmlrpc, erik-fedora, esammons, iboverma, jjoyce, jross, jschluet, kbasil, klember, lhh, lpeer, markmc, matt, mcressma, rbryant, rhos-maint, rjones, sclewis, sisharma, slong, tdecacqu, veillard, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-07-05 02:40:08 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:	1439557, 1439558, 1439559
Bug Blocks:	1439550

Description Andrej Nemec 2017-04-06 08:38:07 UTC

A vulnerability was found in libxslt where the EXSLT math.random function was not initialized with a random seed during startup, which could cause usage of this function to produce predictable outputs.

Upstream bug:

https://bugzilla.gnome.org/show_bug.cgi?id=758400

Comment 1 Andrej Nemec 2017-04-06 08:54:53 UTC

Created libxslt tracking bugs for this issue:

Affects: fedora-all [bug 1439559]


Created mingw-libxslt tracking bugs for this issue:

Affects: epel-7 [bug 1439557]
Affects: fedora-all [bug 1439558]

Comment 3 Doran Moppert 2017-04-11 03:29:54 UTC

Statement:

The xslt random function provided by libxslt does not offer any security or cryptography guarantees. Applications using libxslt that rely on non-repeatable randomness should be seeding the system PRNG (srand()) themselves, as they would if calling rand() directly.