CVE-2020-19143

Name: CVE-2020-19143
Creator: NVD / NIST
Published: 2021-09-09T15:15:07.643+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.41%

Last modified Jun 17, 2026

CVE-2020-19143 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the "TIFFVGetField" funtion in the component 'libtiff/tif_dir.c'.. EPSS estimates a 1.41% chance of exploitation in the next 30 days.

Description

Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the "TIFFVGetField" funtion in the component 'libtiff/tif_dir.c'.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.41%

69.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Simplesystems	Libtiff	4.0.10
Debian	Debian Linux	11.0

References

http://bugzilla.maptools.org/show_bug.cgi?id=2851Issue Tracking, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/issues/158Issue Tracking, Patch, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/merge_requests/119Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211004-0005/Third Party Advisory
https://www.debian.org/security/2021/dsa-4997Third Party Advisory
http://bugzilla.maptools.org/show_bug.cgi?id=2851Issue Tracking, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/issues/158Issue Tracking, Patch, Third Party Advisory
https://gitlab.com/libtiff/libtiff/-/merge_requests/119Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211004-0005/Third Party Advisory
https://www.debian.org/security/2021/dsa-4997Third Party Advisory

Timeline

Published: Sep 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-19143?

Buffer Overflow in LibTiff v4.0.10 allows attackers to cause a denial of service via the "TIFFVGetField" funtion in the component 'libtiff/tif_dir.c'.

How severe is CVE-2020-19143?

CVE-2020-19143 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.

How do I fix CVE-2020-19143?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-19143?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST