VULNERABILITY INTELLIGENCE

CVE-2018-3858

CVSS score7.8 HIGH

EPSS probability1.50%

CISA KEVNot currently listed

Published2018-07-19

Last modified2026-06-17

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

Description

An exploitable heap overflow exists in the TIFF parsing functionality of Canvas Draw version 4.0.0. A specially crafted TIFF image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a TIFF image to trigger this vulnerability and gain the ability to execute code. A different vulnerability than CVE-2018-3857.

Weakness classification

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

Primary references

talos-cna@cisco.com — Exploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory