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Fencer Vulns
medium 6.5

CVE-2019-14973 json

`_TIFFCheckMalloc` and `_TIFFCheckRealloc` in `tif_aux.c` in LibTIFF through 4.0.10 mishandle...

published 2019-08-14 7 y ago modified 2026-07-23 3 mo ago also EUVD-2019-6063 , JLSEC-2025-253

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

_TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c in LibTIFF through 4.0.10 mishandle Integer Overflow checks because they rely on compiler behavior that is undefined by the applicable C standards. This can, for example, lead to an application crash.

Patch / fix

  • julia Libtiff_jll 4.1.0+0
  • tiff Debian 14, Debian 13, Debian 12 4.0.10+git190814-1

debian advisories DEBIAN-CVE-2019-14973

  • tiff Ubuntu 16.04 LTS 4.0.6-1ubuntu0.7
  • tiff Ubuntu 18.04 LTS 4.0.9-5ubuntu0.3
  • tiff Ubuntu Pro 14.04 LTS 4.0.3-7ubuntu0.11+esm6

ubuntu advisories UBUNTU-CVE-2019-14973

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

  • libtiff RHEL 7 4.0.3-35.el7
  • libtiff-tools RHEL 7 4.0.3-35.el7
  • libtiff RHEL 8 4.0.9-17.el8
  • libtiff-tools RHEL 8 4.0.9-17.el8

red hat advisories RHSA-2020:3902RHSA-2020:1688

  • tiff SLE Module for Package Hub 15 SP2, SLE Module for Package Hub 15 SP1, SLE Module for Desktop Applications 15 SP2 +3 more 4.0.9-5.30.28
  • tiff SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +4 more 4.0.9-44.42.1

suse advisories SUSE-SU-2020:2744-1SUSE-SU-2019:3058-1

  • tiff openSUSE Tumbleweed 4.6.0-2.1
  • tiff openSUSE Leap 15.1 4.0.9-lp151.10.3.1
  • tiff openSUSE Leap 15.2 4.0.9-lp152.11.3.1

opensuse advisories openSUSE-SU-2024:13381-1openSUSE-SU-2020:1840-1openSUSE-SU-2020:1561-1

  • tiff Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 4.0.10-r1

alpine advisories ALPINE-CVE-2019-14973

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org 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-2019-14973 updated cvss 4.5

libtiff: integer overflow in _TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c

  • Red Hat Enterprise Linux 5 libtiff
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 6 libtiff
    affected: no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) libtiff-tools 4.0.9-17.el8 Red Hat Enterprise Linux AppStream (v. 8) libtiff 4.0.9-17.el8
    fixed: vendor fix RHSA-2020:1688
  • Red Hat Enterprise Linux Client (v. 7) libtiff 4.0.3-35.el7 Red Hat Enterprise Linux Client Optional (v. 7) libtiff-tools 4.0.3-35.el7 Red Hat Enterprise Linux ComputeNode (v. 7) libtiff 4.0.3-35.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libtiff-tools 4.0.3-35.el7 Red Hat Enterprise Linux Server (v. 7) libtiff 4.0.3-35.el7 Red Hat Enterprise Linux Server Optional (v. 7) libtiff-tools 4.0.3-35.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) libtiff 4.0.3-35.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) libtiff-tools 4.0.3-35.el7
    fixed: vendor fix RHSA-2020:3902

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

4.20% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/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
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia Libtiff_jll
<4.1.0+0
4.1.0+0

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

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.