What is CVE-2020-27819?

CVE-2020-27819 is a vulnerability in libxls before and including version 1.6.1 that allows a remote attacker to cause a denial of service via a crafted Microsoft Excel file.

What is the severity of CVE-2020-27819?

The severity of CVE-2020-27819 is medium, with a severity value of 5.5.

How does CVE-2020-27819 affect libxls?

CVE-2020-27819 affects libxls before and including version 1.6.1 when reading Microsoft Excel files.

How can CVE-2020-27819 be fixed?

CVE-2020-27819 can be fixed by updating libxls to version 1.6.2 or later, which resolves the vulnerability.

Is there any additional information about CVE-2020-27819?

Yes, you can find more information about CVE-2020-27819 in the references provided: [bugzilla.redhat.com](https://bugzilla.redhat.com/show_bug.cgi?id=1903296), [github.com](https://github.com/libxls/libxls/issues/84), [bugzilla.redhat.com](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1903297).

Vulnerability/
CVE-2020-27819

medium

5.5

CWE

476

1/12/2020

23/2/2021

4/8/2024

CVE-2020-27819: Null Pointer Dereference

First published: Tue Dec 01 2020(Updated: )

An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
redhat/libxls	<1.6.2	1.6.2
Libxls Project Libxls	<1.6.2

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Frequently Asked Questions

What is CVE-2020-27819?
CVE-2020-27819 is a vulnerability in libxls before and including version 1.6.1 that allows a remote attacker to cause a denial of service via a crafted Microsoft Excel file.
What is the severity of CVE-2020-27819?
The severity of CVE-2020-27819 is medium, with a severity value of 5.5.
How does CVE-2020-27819 affect libxls?
CVE-2020-27819 affects libxls before and including version 1.6.1 when reading Microsoft Excel files.
How can CVE-2020-27819 be fixed?
CVE-2020-27819 can be fixed by updating libxls to version 1.6.2 or later, which resolves the vulnerability.
Is there any additional information about CVE-2020-27819?
Yes, you can find more information about CVE-2020-27819 in the references provided: [bugzilla.redhat.com](https://bugzilla.redhat.com/show_bug.cgi?id=1903296), [github.com](https://github.com/libxls/libxls/issues/84), [bugzilla.redhat.com](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1903297).

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agent/event
collector/redhat-bugzilla
source/Red Hat
alias/CVE-2020-27819
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vendor/libxls project
canonical/libxls project libxls
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