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Fencer Intel
medium 5.3

CVE-2015-9019 json

In libxslt 1.1.29 and earlier, the EXSLT math.random function was not initialized with a random seed during startup, which could cause usag…

published 2017-04-05 9 y ago modified 2026-06-17 4 mo ago also EUVD-2015-8873

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

In libxslt 1.1.29 and earlier, 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.

Patch / fix

  • libxslt SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +6 more 1.1.28-16.1
  • libxslt SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 1.1.24-19.33.1
  • libxslt-python SLE Software Development Kit 11 SP4 1.1.24-19.33.3

suse advisories SUSE-SU-2017:1313-1SUSE-SU-2017:1282-1

  • libxslt openSUSE Tumbleweed 1.1.34-3.2

opensuse advisories openSUSE-SU-2024:11017-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-9019 updated cvss 4.0

libxslt: math.random() in xslt uses unseeded randomness

  • Red Hat Enterprise Linux 5 libxslt Red Hat Enterprise Linux 6 libxslt, libxslt-python Red Hat Enterprise Linux 7 libxslt, libxslt-python Red Hat Enterprise Linux OpenStack Platform 6 (Juno) libxslt Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) libxslt-python Red Hat Enterprise MRG 2 libxslt
    +4 more products
    Red Hat OpenStack Platform 8 (Liberty) libxslt-python Red Hat OpenStack Platform 9 (Mitaka) libxslt-python Red Hat OpenStack Platform 10 (Newton) libxslt-python Red Hat Storage 3 libxslt, libxslt-python
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.42% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-330 Use of Insufficiently Random Values

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.