Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting python-pysaml2 package, versions <0:3.0.2-3.el7ost
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-PYTHONPYSAML2-5122171
- published27 Mar 2023
- disclosed31 Oct 2016
Introduced: 31 Oct 2016
CVE-2016-10149 (opens in a new tab)How to fix?
Upgrade RHEL:7 python-pysaml2 to version 0:3.0.2-3.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-pysaml2 package and not the python-pysaml2 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.
References
- https://access.redhat.com/security/cve/CVE-2016-10149
- http://www.debian.org/security/2017/dsa-3759
- http://www.openwall.com/lists/oss-security/2017/01/19/5
- http://www.securityfocus.com/bid/97692
- https://access.redhat.com/errata/RHSA-2017:0936
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=850716
- https://github.com/rohe/pysaml2/commit/6e09a25d9b4b7aa7a506853210a9a14100b8bc9b
- https://github.com/rohe/pysaml2/issues/366
- https://github.com/rohe/pysaml2/pull/379