High severity · published Mar 9, 2021
CVE-2020-35524
A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool
7.8
CVSS
1.9%
EPSS
No
On KEV
Description
A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0 · source: NVD
FE
Fedora · Fedoraproject
33 · source: NVD
LI
Libtiff · Libtiff
before 4.2.0 · source: NVD
OS
Ontap Select Deploy Administration Utility · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35524
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-35524
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1932044
Patch
https://gitlab.com/libtiff/libtiff/-/merge_requests/159
Patch
https://gitlab.com/rzkn/libtiff/-/commit/7be2e452ddcf6d7abca88f41d3761e6edab72b22
Mailing List
https://lists.debian.org/debian-lts-announce/2021/06/msg00023.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
Third Party Advisory
https://security.gentoo.org/glsa/202104-06
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