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Fencer Vulns
medium 6.5

CVE-2023-40745 json

Libtiff: integer overflow in tiffcp.c

published 2023-10-05 3 y ago modified 2026-07-18 3 mo ago also EUVD-2023-45298 , JLSEC-2025-312

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

LibTIFF is vulnerable to an integer overflow. This flaw allows remote attackers to cause a denial of service (application crash) or possibly execute an arbitrary code via a crafted tiff image, which triggers a heap-based buffer overflow.

Patch / fix

  • julia Libtiff_jll 4.6.0+0
  • Red Hat Red Hat Enterprise Linux 9 0:4.4.0-12.el9
  • tiff Debian 12 4.5.0-6+deb12u1
  • tiff Debian 14, Debian 13 4.5.1+git230720-1

debian advisories DEBIAN-CVE-2023-40745

  • libtiff RHEL 9 4.4.0-12.el9
  • libtiff-tools RHEL 9 4.4.0-12.el9

red hat advisories RHSA-2024:2289

  • tiff SLE Module for Package Hub 15 SP5, SLE Module for Basesystem 15 SP5, SLE Micro 5.5 +6 more 4.0.9-150000.45.41.1
  • tiff SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 4.0.9-44.80.1

suse advisories SUSE-SU-2024:0973-1SUSE-SU-2024:0915-1

  • libtiff AlmaLinux 9 4.4.0-12.el9
  • libtiff-tools AlmaLinux 9 4.4.0-12.el9

almalinux advisories ALSA-2024:2289

  • libtiff CBL-Mariner 2.0 4.6.0-1

azure linux advisories AZL-31096

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2023-40745 updated cvss 6.5

libtiff: integer overflow in tiffcp.c

  • Red Hat Enterprise Linux 6 libtiff Red Hat Enterprise Linux 7 libtiff, libtiff-tools, compact-libtiff
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 libtiff, libtiff-tools, mingw-libtiff, compat-libtiff3, mingw32-libtiff, mingw64-libtiff
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 9) libtiff 4.4.0-12.el9 Red Hat Enterprise Linux CRB (v. 9) libtiff-tools 4.4.0-12.el9
    fixed: vendor fix RHSA-2024:2289

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

1.41% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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
<4.6.0+0
4.6.0+0

Affected products

  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8

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.