CVE-2018-20450 — MEDIUM (6.5)

Vulnerability Description

The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libxls Project	Libxls	1.4.0

Related Weaknesses (CWE)

CWE-415

References

https://github.com/evanmiller/libxls/issues/34ExploitIssue TrackingThird Party Advisory
https://security.gentoo.org/glsa/202003-64
https://github.com/evanmiller/libxls/issues/34ExploitIssue TrackingThird Party Advisory
https://security.gentoo.org/glsa/202003-64

FAQ

What is CVE-2018-20450?

CVE-2018-20450 is a vulnerability with a CVSS score of 6.5 (MEDIUM). The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-289...

How severe is CVE-2018-20450?

CVE-2018-20450 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-20450?

Check the references section above for vendor advisories and patch information. Affected products include: Libxls Project Libxls.