CVE-2020-35521

Name: CVE-2020-35521
Creator: NVD / NIST
Published: 2021-03-09T20:15:12.773+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2020-35521 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denial of service.. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denial of service.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

1.23%

65.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Libtiff	Libtiff	< 4.2.0
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0
Fedoraproject	Fedora	33
Netapp	Ontap Select Deploy Administration Utility	All versions

References

https://bugzilla.redhat.com/show_bug.cgi?id=1932034Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
https://security.gentoo.org/glsa/202104-06Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0009/Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1932034Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
https://security.gentoo.org/glsa/202104-06Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0009/Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-35521?

A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denial of service.

How severe is CVE-2020-35521?

CVE-2020-35521 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35521?

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-2020-35521?

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

Scan your code now

Source: NVD / NIST