Skip to content
Fencer Intel
medium 6.5

CVE-2017-13726 json

There is a reachable assertion abort in the function TIFFWriteDirectorySec() in LibTIFF 4.0.8, related to tif_dirwrite.c and a SubIFD tag.

published 9y ago modified 4mo ago also EUVD-2017-5243

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

There is a reachable assertion abort in the function TIFFWriteDirectorySec() in LibTIFF 4.0.8, related to tif_dirwrite.c and a SubIFD tag. A crafted input will lead to a remote denial of service attack.

Patch / fix

  • tiff Debian 14, Debian 13, Debian 12 4.0.8-5

debian advisories DEBIAN-CVE-2017-13726

  • tiff Ubuntu 14.04 LTS 4.0.3-7ubuntu0.8
  • tiff Ubuntu 16.04 LTS 4.0.6-1ubuntu0.3

ubuntu advisories UBUNTU-CVE-2017-13726

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 12 SP3, SLES 12 SP3, SLED 12 SP3 +1 more 4.0.9-44.15.2

suse advisories SUSE-SU-2018:1826-1

  • libtiff Arch Linux 4.0.9-1
  • lib32-libtiff Arch Linux 4.0.9-1

arch linux advisories AVG-814AVG-815

Is CVE-2017-13726 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2017-13726 updated cvss 3.3

libtiff: Reachable assertion abort in the function TIFFWriteDirectorySec()

  • Red Hat Enterprise Linux 5 libtiff Red Hat Enterprise Linux 6 libtiff Red Hat Enterprise Linux 7 libtiff, libtiff-tools, compat-libtiff3
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 libtiff, libtiff-tools
    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

2.63% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel 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.