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THREATINT
PUBLISHED

CVE-2025-8534

libtiff tiff2ps tiff2ps.c PS_Lvl2page null pointer dereference



Description

EN DE

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."

In libtiff 4.6.0 wurde eine Schwachstelle entdeckt. Sie wurde als problematisch eingestuft. Hierbei betrifft es die Funktion PS_Lvl2page der Datei tools/tiff2ps.c der Komponente tiff2ps. Mittels dem Manipulieren mit unbekannten Daten kann eine null pointer dereference-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs hat dabei lokal zu erfolgen. Die Komplexität eines Angriffs ist eher hoch. Das Ausnutzen gilt als schwierig. Der Exploit steht zur öffentlichen Verfügung. Der Patch wird als 6ba36f159fd396ad11bf6b7874554197736ecc8b bezeichnet. Als bestmögliche Massnahme wird Patching empfohlen.

Reserved 2025-08-04 | Published 2025-08-04 | Updated 2025-08-04 | Assigner VulDB


LOW: 2.0CVSS: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
LOW: 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
LOW: 2.5CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
1.0AV:L/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

NULL Pointer Dereference

Denial of Service

Timeline

2025-08-04:Advisory disclosed
2025-08-04:VulDB entry created
2025-08-04:VulDB entry last update

Credits

rootsec (VulDB User) reporter

References

vuldb.com/?id.318664 (VDB-318664 | libtiff tiff2ps tiff2ps.c PS_Lvl2page null pointer dereference) vdb-entry technical-description

vuldb.com/?ctiid.318664 (VDB-318664 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.617831 (Submit #617831 | libtiff tiff2ps 4.6.0 && the newest master SEGV) third-party-advisory

gitlab.com/libtiff/libtiff/-/issues/718 issue-tracking

gitlab.com/libtiff/libtiff/-/merge_requests/746 patch

drive.google.com/...nRNJ8y8HmnYjhv9NE7k6/view?usp=drive_link exploit

gitlab.com/...ommit/6ba36f159fd396ad11bf6b7874554197736ecc8b patch

www.libtiff.org/ product

cve.org (CVE-2025-8534)

nvd.nist.gov (CVE-2025-8534)

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