CVE-2018-20450

Public Exploit

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.26%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/evanmiller/libxls/issues/34 third party advisory issue tracking exploit
https://security.gentoo.org/glsa/202003-64 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-20450?
CVE-2018-20450 has been scored as a medium severity vulnerability.
How to fix CVE-2018-20450?
To fix CVE-2018-20450, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-20450 being actively exploited in the wild?
It is possible that CVE-2018-20450 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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