CVE-2018-20452

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.

CVSS v3 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3 : HIGH

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

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/evanmiller/libxls/issues/35	Exploit Third Party Advisory
https://security.gentoo.org/glsa/202003-64

Configurations

Configuration 1 (hide)

cpe:2.3:a:libxls_project:libxls:1.4.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-12-25 17:29

Updated : 2023-12-10 12:44

NVD link : CVE-2018-20452

Mitre link : CVE-2018-20452

CVE.ORG link : CVE-2018-20452

JSON object : View

Products Affected

libxls_project

libxls

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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