CVE-2021-40439

CVE-2021-40439: Billion Laughs

Vendor Apache Software Foundation
Product Apache OpenOffice
Weakness CWE-611 · XXE
Published October 7, 2021
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

Apache OpenOffice has a dependency on expat software. Versions prior to 2.1.0 were subject to CVE-2013-0340 a "Billion Laughs" entity expansion denial of service attack and exploit via crafted XML files. ODF files consist of a set of XML files. All versions of Apache OpenOffice up to 4.1.10 are subject to this issue. expat in version 4.1.11 is patched.

Key dates

02Disclosure timeline

October 7, 2021 CVE published
August 4, 2024 Record updated