CVE-2016-5851

python-docx before 0.8.6 allows context-dependent attackers to conduct XML External Entity (XXE) attacks via a crafted document.

Weakness

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

Affected Software

Potential Mitigations

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/221.html

References

• http://www.openwall.com/lists/oss-security/2016/06/28/7
• http://www.openwall.com/lists/oss-security/2016/06/28/8
• http://www.securityfocus.com/bid/91485
• https://github.com/python-openxml/python-docx/blob/v0.8.6/HISTORY.rst
• https://github.com/python-openxml/python-docx/commit/61b40b161b64173ab8e362aec1fd197948431beb
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FFMOH7ZPOPQWNJGUZOS5LXX4MGNRXXT/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XU2WSYRNB7CLBBFCGSX34XHACTA2SWDZ/
• http://www.openwall.com/lists/oss-security/2016/06/28/7
• http://www.openwall.com/lists/oss-security/2016/06/28/8
• http://www.securityfocus.com/bid/91485
• https://github.com/python-openxml/python-docx/blob/v0.8.6/HISTORY.rst
• https://github.com/python-openxml/python-docx/commit/61b40b161b64173ab8e362aec1fd197948431beb
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FFMOH7ZPOPQWNJGUZOS5LXX4MGNRXXT/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XU2WSYRNB7CLBBFCGSX34XHACTA2SWDZ/