CVE-2017-9815: Canonical Ubuntu Linux

Medium severity, CVSS 6.5. EPSS: 1.6% chance of exploitation in the next 30 days.

In LibTIFF 4.0.7, the TIFFReadDirEntryLong8Array function in libtiff/tif_dirread.c mishandles a malloc operation, which allows attackers to cause a denial of service (memory leak within the function _TIFFmalloc in tif_unix.c) via a crafted file.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only
• Libtiff Libtiff: version 4.0.7 only

Published 2017-06-22. Last modified 2026-06-17.