CVE-2018-20452

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

The read_MSAT_body function in ole.c in libxls 1.4.0 has an invalid free that allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file, because of inconsistent memory management (new versus free) in ole2_read_header in ole.c.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

No affected versions have been published.

Timeline

Published
Dec 25, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-20452: High severity, CVSS 8.8 | Vulnix