What is CVE-2018-5784?

CVE-2018-5784 is a medium-severity vulnerability in Libtiff, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2018-01-19.

How severe is CVE-2018-5784?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2018-5784 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Libtiff

CVE-2018-5784

In LibTIFF 4.0.9, there is an uncontrolled resource consumption in the TIFFSetDirectory function of tif_dir.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file. This occurs because the declared number of directory entries is not validated against the actual number of directory entries.

Vulnerability class: DoS (Denial of Service)

Published 2018-01-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.030 (86.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Libtiff — versions 4.0.9
Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Debian Linux — versions 7.0, 8.0, 9.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

andir/nixos-issue-db-example

References

usn.ubuntu.com/3606-1/ (vendor-advisory, Third Party Advisory)
usn.ubuntu.com/3602-1/ (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2018/05/msg00022.html (mailing-list, Mailing List, Third Party Advisory)
www.debian.org/security/2018/dsa-4349 (vendor-advisory, Third Party Advisory)
bugzilla.maptools.org/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
lists.debian.org/debian-lts-announce/2018/07/msg00002.html (mailing-list, Mailing List, Third Party Advisory)
gitlab.com/libtiff/libtiff/commit/473851d211cf8805a161820337ca74cc9615d6ef (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-5784?: CVE-2018-5784 is a medium-severity vulnerability in Libtiff, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2018-01-19.
How severe is CVE-2018-5784?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-5784 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.