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Fencer Vulns
high 8.8

CVE-2023-25434 json

libtiff 4.5.0 is vulnerable to Buffer Overflow via extractContigSamplesBytes() at /libtiff/tools/tiffcrop.c:3215.

published 2023-06-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-29389

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

libtiff 4.5.0 is vulnerable to Buffer Overflow via extractContigSamplesBytes() at /libtiff/tools/tiffcrop.c:3215.

Patch / fix

  • tiff Debian 14, Debian 13, Debian 12 4.5.0-5

debian advisories DEBIAN-CVE-2023-25434

  • tiff Ubuntu 18.04 LTS 4.0.9-5ubuntu0.10
  • tiff Ubuntu 20.04 LTS 4.1.0+git191117-2ubuntu0.20.04.8
  • tiff Ubuntu 22.04 LTS 4.3.0-6ubuntu0.4
  • tiff Ubuntu Pro 14.04 LTS 4.0.3-7ubuntu0.11+esm7
  • tiff Ubuntu Pro 16.04 LTS 4.0.6-1ubuntu0.8+esm10

ubuntu advisories UBUNTU-CVE-2023-25434

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 CBL-Mariner 2.0 4.5.1-1

azure linux advisories AZL-27166

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-2023-25434 updated cvss 5.5

libtiff: heap-buffer overflow via extractContigSamplesBytes() at /libtiff/tools/tiffcrop.c

  • Red Hat Enterprise Linux 8 libtiff, libtiff-tools
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 libtiff, libtiff-tools
    affected: no fix available
  • Red Hat Enterprise Linux 6 libtiff Red Hat Enterprise Linux 7 libtiff, libtiff-tools, compat-libtiff3 Red Hat Enterprise Linux 8 compat-libtiff3
    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

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
22 mo ago

Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/libtiff/libtiff/-/issues/519 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

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.