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CVE-2020-19144

23
FAUCET Score

CVE-2020-19144 describes a buffer overflow vulnerability in LibTiff v4.0.10, specifically within the '_TIFFmemcpy' function in 'tif_unix.c'. This flaw can lead to a denial of service and affects various Debian-based systems and NetApp products utilizing LibTiff. Rated as Medium severity with a CVSS score of 6.5, the vulnerability requires user interaction (UI:R) and can be exploited over a network (AV:N) with low attack complexity (AC:L), resulting in high availability impact (A:H). Currently, there is no evidence of active exploitation, nor is there publicly available exploit code in Metasploit, Nuclei, or ExploitDB. The vulnerability has garnered minimal community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.0.10CPE matchmatch criteria
cpe:2.3:a:simplesystems:libtiff:4.0.10:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 85th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2020-19144Moderate

libtiff: heap-based buffer overflow in _TIFFmemcpy() in tif_unix.c

Apr 28, 2019

References

bugzilla.maptools.org / show_bug.cgi
Issue TrackingThird Party Advisory
gitlab.com / libtiff/libtiff/-/issues/159
Issue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2021/10/msg00004.html
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20211004-0005
Third Party Advisory