Medium severity · published Sep 9, 2021
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'
6.5
CVSS
1.5%
EPSS
No
On KEV
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'.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
11.0 · source: NVD
LI
Libtiff · Simplesystems
4.0.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-19143
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-19143
Issue Tracking
http://bugzilla.maptools.org/show_bug.cgi?id=2851
Issue Tracking
https://gitlab.com/libtiff/libtiff/-/issues/158
Patch
https://gitlab.com/libtiff/libtiff/-/merge_requests/119
Third Party Advisory
https://security.netapp.com/advisory/ntap-20211004-0005/
Third Party Advisory
https://www.debian.org/security/2021/dsa-4997
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