CVE-2020-35521

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-03-09 · updated 2026-06-17
Weakness: CWE-119

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.

Affected products

Fedoraproject Fedora: 33
libtiff: before 4.2.0 — fixed in 4.2.0
NetApp ONTAP Select Deploy administration utility: all versions
Red Hat Enterprise Linux: 7.0, 8.0

How to fix

Upgrade to a fixed version: libtiff 4.2.0. Check the vendor advisory for mitigations.

References

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

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