Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting python-defusedxml package, versions <0:0.5.0-1.el7ost


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.22% (61st percentile)

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  • Snyk IDSNYK-RHEL7-PYTHONDEFUSEDXML-5122168
  • published27 Mar 2023
  • disclosed31 Oct 2016

Introduced: 31 Oct 2016

CVE-2016-10149  (opens in a new tab)
CWE-776  (opens in a new tab)

How to fix?

Upgrade RHEL:7 python-defusedxml to version 0:0.5.0-1.el7ost or higher.
This issue was patched in RHSA-2017:0936.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-defusedxml package and not the python-defusedxml package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

XML External Entity (XXE) vulnerability in PySAML2 4.4.0 and earlier allows remote attackers to read arbitrary files via a crafted SAML XML request or response.