Vulnerability · Published Aug 4, 2025 · Assigned by VulDB
CVE-2025-8534libtiff tiff2ps tiff2ps.c PS_Lvl2page null pointer dereference
Low 2.5
In plain English
A low-severity null pointer dereference in libtiff. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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."
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | tiff | no fix listed | DEBIAN-CVE-2025-8534 |
| Debian:13 | tiff | no fix listed | DEBIAN-CVE-2025-8534 |
| Debian:14 | tiff | 4.7.1-1 | DEBIAN-CVE-2025-8534 |
| Ubuntu:22.04:LTS | neuron | no fix listed | UBUNTU-CVE-2025-8534 |
| Ubuntu:25.10 | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2025-8534 |
| Ubuntu:26.10 | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2025-8534 |
| Ubuntu:25.10 | texmaker | no fix listed | UBUNTU-CVE-2025-8534 |
| Ubuntu:26.04:LTS | texmaker | no fix listed | UBUNTU-CVE-2025-8534 |
| Ubuntu:26.10 | texmaker | no fix listed | UBUNTU-CVE-2025-8534 |
| Ubuntu:22.04:LTS | tiff | 4.3.0-6ubuntu0.11 | USN-7707-1 |
| Ubuntu:22.04:LTS | tiff | 4.3.0-6ubuntu0.11 | UBUNTU-CVE-2025-8534 |
| Ubuntu:24.04:LTS | tiff | 4.5.1+git230720-4ubuntu2.3 | UBUNTU-CVE-2025-8534 |
| Ubuntu:24.04:LTS | tiff | 4.5.1+git230720-4ubuntu2.3 | USN-7707-1 |
| Ubuntu:25.10 | tiff | 4.7.0-3ubuntu2 | UBUNTU-CVE-2025-8534 |
Affected products (as reported)
Weakness: CWE-476, CWE-404 · Vector: 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
References
- VDB-318664 | libtiff tiff2ps tiff2ps.c PS_Lvl2page null pointer dereference vdb-entry, technical-description
- VDB-318664 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #617831 | libtiff tiff2ps 4.6.0 && the newest master SEGV third-party-advisory
- https://gitlab.com/libtiff/libtiff/-/issues/718 issue-tracking
- https://gitlab.com/libtiff/libtiff/-/merge_requests/746 patch
- https://drive.google.com/file/d/15JPA3kLYiYD-nRNJ8y8HmnYjhv9NE7k6/view?usp=drive_link exploit
- https://gitlab.com/libtiff/libtiff/-/commit/6ba36f159fd396ad11bf6b7874554197736ecc8b patch
- http://www.libtiff.org/ product