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Bug 1439548 - (CVE-2015-9019) CVE-2015-9019 libxslt: math.random() in xslt uses unseeded randomness
CVE-2015-9019 libxslt: math.random() in xslt uses unseeded randomness
Status: CLOSED WONTFIX
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20151120,reported=2...
: Security
Depends On: 1439557 1439558 1439559
Blocks: 1439550
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Reported: 2017-04-06 04:38 EDT by Andrej Nemec
Modified: 2017-07-04 22:40 EDT (History)
29 users (show)

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Last Closed: 2017-07-04 22:40:08 EDT
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Description Andrej Nemec 2017-04-06 04:38:07 EDT 
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 04:54:53 EDT 
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 2017-04-10 23:29:54 EDT 
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.
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