What is CVE-2018-20452?

CVE-2018-20452 is a high-severity vulnerability in Libxls_project Libxls, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2018-12-25.

How severe is CVE-2018-20452?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Libxls_project Libxls

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 ma…

Vulnerability class: Buffer Overflow

EPSS: 0.015 (71.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Libxls_project Libxls — versions 1.4.0
N/a — versions n/a

Weakness classification (CWE)

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

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (vendor-advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2018-20452?: CVE-2018-20452 is a high-severity vulnerability in Libxls_project Libxls, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2018-12-25.
How severe is CVE-2018-20452?: High severity. CVSS v3 base score is 8.8 out of 10.