Heap-based Buffer Overflow Affecting tiff package, versions <4.7.0-3+e16


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-TIFF-19698752
  • published12 Sept 2026
  • disclosed11 Sept 2026

Introduced: 11 Sep 2026

CVE-2026-18495  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Echo:latest tiff to version 4.7.0-3+e16 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tiff package and not the tiff package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in libtiff. A heap-buffer overflow vulnerability exists in the tiff2pdf utility due to an integer truncation error when processing crafted BigTIFF files. An attacker can provide a specially crafted BigTIFF file, causing a 64-bit StripByteCounts value to be truncated to a 32-bit integer. This leads to an undersized memory allocation and a subsequent out-of-bounds memory copy, resulting in a crash and severe memory corruption.

CVSS Base Scores

version 3.1