CVE-2018-20452 - CVE House
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Status published High CVE-2018-20452

The read_MSAT_body function in ole.c in libxls 1.4.0 has an...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2021-27836
An issue was discoverered in in function xls_getWorkSheet in xls.c...
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CVE-2018-20450
The read_MSAT function in ole.c in libxls 1.4.0 has a...
Medium 6.5

Affected Vendor

libxls project

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Affected Software

libxls
Vulnerable Versions:
1.4.0

Timeline

Official Publish: December 25th, 2018
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.