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Fencer Intel
medium 5.0

CVE-2015-3451 json

The _clone function in XML::LibXML before 2.0119 does not properly set the expand_entities option, which allows remote attackers to conduct…

published 11y ago modified 4mo ago also EUVD-2015-3494

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The _clone function in XML::LibXML before 2.0119 does not properly set the expand_entities option, which allows remote attackers to conduct XML external entity (XXE) attacks via crafted XML data to the (1) new or (2) load_xml function.

Patch / fix

  • libxml-libxml-perl Debian 14, Debian 13, Debian 12 2.0116+dfsg-2

debian advisories DEBIAN-CVE-2015-3451

  • libxml-libxml-perl Ubuntu 14.04 LTS 2.0108+dfsg-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2015-3451

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • perl-XML-LibXML SLES for SAP 12, SLES 12, SLED 12 2.0019-5.3

suse advisories SUSE-SU-2015:1439-1

  • perl-XML-LibXML openSUSE Tumbleweed 2.0128-1.3

opensuse advisories openSUSE-SU-2024:10516-1

Is CVE-2015-3451 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2015-3451 updated cvss 2.6

perl-XML-LibXML: "expand_entities" option was not preserved under some circumstances

  • Red Hat Enterprise Linux 5 perl-XML-LibXML Red Hat Enterprise Linux 6 perl-XML-LibXML Red Hat Enterprise Linux 7 perl-XML-LibXML
    affected: workaround, 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

4.02% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

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.