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Fencer Vulns
low 2.5

CVE-2025-8534 json

libtiff tiff2ps tiff2ps.c PS_Lvl2page null pointer dereference

published 2025-08-04 15 mo ago modified 2026-07-25 3 mo ago also EUVD-2025-23581 , JLSEC-2025-320

cvss
2.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

A vulnerability classified as problematic was found in libtiff 4.6.0. This vulnerability affects the function PS_Lvl2page of the file tools/tiff2ps.c of the component tiff2ps. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is 6ba36f159fd396ad11bf6b7874554197736ecc8b. It is recommended to apply a patch to fix this issue. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."

Patch / fix

  • julia Libtiff_jll 4.7.0+0
  • tiff Debian 14 4.7.1-1

debian advisories DEBIAN-CVE-2025-8534

  • tiff Ubuntu 22.04 LTS 4.3.0-6ubuntu0.11
  • tiff Ubuntu 24.04 LTS 4.5.1+git230720-4ubuntu2.3
  • tiff Ubuntu 25.10 4.7.0-3ubuntu2
  • tiff Ubuntu Pro 14.04 LTS 4.0.3-7ubuntu0.11+esm15
  • tiff Ubuntu Pro 16.04 LTS 4.0.6-1ubuntu0.8+esm18
  • tiff Ubuntu Pro 18.04 LTS 4.0.9-5ubuntu0.10+esm8
  • tiff Ubuntu Pro 20.04 LTS 4.1.0+git191117-2ubuntu0.20.04.14+esm1

ubuntu advisories UBUNTU-CVE-2025-8534

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 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 4.7.1-160000.1.1
  • tiff Linux Micro 6.0 4.7.1-1.1
  • tiff Linux Micro 6.1 4.7.1-slfo.1.1_1.1
  • tiff SLE Module for Package Hub 15 SP7, SLE Module for Package Hub 15 SP6, SLE Module for Basesystem 15 SP7 +2 more 4.7.0-150600.3.18.1
  • tiff SLE Module for Basesystem 15 SP7, SLE Module for Basesystem 15 SP6, SLE Micro 5.5 +3 more 4.0.9-150000.45.55.1
  • tiff SLES LTSS Extended Security 12 SP5 4.0.9-44.94.1

suse advisories SUSE-SU-2025:21009-1SUSE-SU-2025:21032-1SUSE-SU-2025:21037-1SUSE-SU-2025:20971-1SUSE-SU-2025:03348-1SUSE-SU-2025:03346-1

  • tiff openSUSE Leap 16.0 4.7.1-160000.1.1
  • tiff-man openSUSE Leap 16.0 4.7.1-160000.1.1
  • tiff openSUSE Tumbleweed 4.7.0-8.1

opensuse advisories openSUSE-SU-2025:20049-1openSUSE-SU-2025:15486-1

  • libtiff Azure Linux 3.0 4.6.0-7
  • libtiff CBL-Mariner 2.0 4.6.0-8

azure linux advisories AZL-66078AZL-66095

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-2025-8534 updated cvss 2.5

libtiff: Libtiff Null Pointer Dereference Vulnerability

  • Red Hat Enterprise Linux 10 libtiff
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux 6 libtiff Red Hat Enterprise Linux 7 libtiff, libtiff-tools, compat-libtiff3 Red Hat Enterprise Linux 8 libtiff, libtiff-tools, mingw-libtiff, compat-libtiff3, mingw32-libtiff, mingw64-libtiff 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

CISA SSVC

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

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • vuldb.com https://vuldb.com/?submit.617831 referenced PoC, tagged "exploit" by a source, unverified
  • gitlab.com https://gitlab.com/libtiff/libtiff/-/issues/718 referenced PoC, tagged "exploit" by a source, unverified
  • drive.google.com https://drive.google.com/file/d/15JPA3kLYiYD-nRNJ8y8HmnYjhv9NE7k6/view?usp=drive_link referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 2.0 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CNA 3.1 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CNA 3.0 2.5 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CNA 2.0 1.0 AV:L/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C
CNA 4.0 1.1 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CNA 2.0 1.0 AV:L/AC:H/Au:S/C:N/I:N/A:P
OSV 3.1 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
julia Libtiff_jll
>=4.6.0+0, <4.7.0+0
4.7.0+0

Affected products

  • n/a libtiff

Classification

Weakness
  • CWE-476 NULL Pointer Dereference
  • CWE-404 Improper Resource Shutdown or Release

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.