CVE-2018-20452

Published: Dec 25, 2018Modified: Nov 21, 2024

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

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 (1)

Products: Libxls Project: Libxls

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Libxls Project Libxls	Version 1.4.0

Related CWEs

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (4)

https://github.com/evanmiller/libxls/issues/35

Source: cve@mitre.org

ExploitThird Party Advisory

https://security.gentoo.org/glsa/202003-64

Source: cve@mitre.org

https://github.com/evanmiller/libxls/issues/35

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

https://security.gentoo.org/glsa/202003-64

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.