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Fencer Vulns
high 8.8

CVE-2018-17795 json

The function t2p_write_pdf in tiff2pdf.c in LibTIFF 4.0.9 and earlier allows remote attackers to cause a denial of service (heap-based buff…

published 2018-09-30 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-9541

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The function t2p_write_pdf in tiff2pdf.c in LibTIFF 4.0.9 and earlier allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, a similar issue to CVE-2017-9935.

Patch / fix

  • tiff Debian 14, Debian 13, Debian 12 4.0.9-2

debian advisories DEBIAN-CVE-2018-17795

  • tiff Ubuntu 14.04 LTS 4.0.3-7ubuntu0.9
  • tiff Ubuntu 16.04 LTS 4.0.6-1ubuntu0.4

ubuntu advisories UBUNTU-CVE-2018-17795

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • tiff SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 3.8.2-141.169.19.1
  • tiff SLE Module for Desktop Applications 15, SLE Module for Basesystem 15 4.0.9-5.14.1
  • tiff SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 4.0.9-44.24.1

suse advisories SUSE-SU-2018:3391-1SUSE-SU-2018:3327-1SUSE-SU-2018:3289-1

  • tiff openSUSE Tumbleweed 4.3.0-1.3

opensuse advisories openSUSE-SU-2024:11461-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-17795 updated cvss 4.3

libtiff: Heap-based buffer overflow in tiff2pdf.c:t2p_write_pdf()

  • Red Hat Enterprise Linux 5 libtiff Red Hat Enterprise Linux 6 libtiff Red Hat Enterprise Linux 7 libtiff, libtiff-tools, compat-libtiff3 Red Hat Enterprise Linux 8 libtiff, libtiff-tools, mingw-libtiff, mingw32-libtiff, mingw64-libtiff
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.08% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugzilla.maptools.org http://bugzilla.maptools.org/show_bug.cgi?id=2816 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.