What is CVE-2017-5644?

CVE-2017-5644 is a medium-severity vulnerability in Apache Poi, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 5.5/10. Published 2017-03-24.

How severe is CVE-2017-5644?

Medium severity. CVSS v3 base score is 5.5 out of 10.

XXE in Apache Poi

CVE-2017-5644

Apache POI in versions prior to release 3.15 allows remote attackers to cause a denial of service (CPU consumption) via a specially crafted OOXML file, aka an XML Entity Expansion (XEE) attack.

EPSS: 0.007 (71.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Apache Poi
Apache Software Foundation Poi — versions before 3.15

Weakness classification (CWE)

CWE-776 — Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion)

References

security@apache.org (vdb-entry, x_refsource_BID)
security@apache.org (x_refsource_MISC)
security@apache.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2017-5644?: CVE-2017-5644 is a medium-severity vulnerability in Apache Poi, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 5.5/10. Published 2017-03-24.
How severe is CVE-2017-5644?: Medium severity. CVSS v3 base score is 5.5 out of 10.