CVEvulnerability

CVE-2018-20452

8.8 HIGH Published 2018-12-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-12-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
8.8 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-119

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.

Affected configurations

• libxls project libxls 1.4.0

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References