🛡️ CVE-2017-5644 — poi

⚪ Unknown ✅ No Known Exploit CWE-776 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Improper Restriction of Recursive Entity References in DTDs in Apache POI

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2017-5644 is classified as CWE-776: XML Entity Expansion. Nested entity definitions expand enormously when parsed, consuming memory and CPU.

Affected software

CVE-2017-5644 is recorded against 1 package.

  • org.apache.poi:poi (fixed in 3.15)

Timeline and source

Published on 13 May 2022 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
www.oracle.com (Web)
poi.apache.org (Web)
www.securityfocus.com (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE CWE-776
Public Exploit ✅ No
Source OSV
Published 2022-05-13
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
org.apache.poi:poi — 3.15

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