Buffer overflow in Libreoffice

CVE-2018-10120

The SwCTBWrapper::Read function in sw/source/filter/ww8/ww8toolbar.cxx in LibreOffice before 5.4.6.1 and 6.x before 6.0.2.1 does not validate a customizations index, which allows remote attackers to cause a denial of service (heap-based buffer overflow with write access) or possibly have unspecified other impact via a crafted document that contains a certain Microsoft Word record.

EPSS: 0.021 (80.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-10120?
CVE-2018-10120 is a high-severity vulnerability in Libreoffice, classified under Improper Validation of Array Index. CVSS score: 7.8/10. Published 2018-04-16.
How severe is CVE-2018-10120?
High severity. CVSS v3 base score is 7.8 out of 10.