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Fencer Vulns
medium 6.5

CVE-2017-9937 json

In LibTIFF 4.0.8, there is a memory malloc failure in tif_jbig.c.

published 2017-06-26 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18847

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

In LibTIFF 4.0.8, there is a memory malloc failure in tif_jbig.c. A crafted TIFF document can lead to an abort resulting in a remote denial of service attack.

Patch / fix

  • jbigkit Ubuntu 18.04 LTS 2.1-3.1ubuntu0.18.04.1
  • jbigkit Ubuntu 20.04 LTS 2.1-3.1ubuntu0.20.04.1
  • jbigkit Ubuntu 22.04 LTS 2.1-3.1ubuntu0.22.04.1
  • jbigkit Ubuntu Pro 14.04 LTS 2.0-2ubuntu4.1+esm1
  • jbigkit Ubuntu Pro 16.04 LTS 2.1-3.1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2017-9937

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

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-2017-9937 updated cvss 3.3

libtiff: memory malloc failure in tif_jbig.c could cause DOS.

  • 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 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

2.95% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugzilla.maptools.org http://bugzilla.maptools.org/show_bug.cgi?id=2707 referenced PoC, tagged "exploit" by a source, unverified

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
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.