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A flaw has been found in LibTIFF 4.7.0. This affects the function _TIFFmallocExt/_TIFFCheckRealloc/TIFFHashSetNew/InitCCITTFax3 of the file tools/tiffcmp.c of the component tiffcmp. Executing manipulation can lead to memory leak. The attack is restricted to local execution. This attack is characterized by high complexity. It is indicated that the exploitability is difficult. The exploit has been published and may be used. There is ongoing doubt regarding the real existence of this vulnerability. This patch is called ed141286a37f6e5ddafb5069347ff5d587e7a4e0. It is best practice to apply a patch to resolve this issue. A researcher disputes the security impact of this issue, because "this is a memory leak on a command line tool that is about to exit anyway". In the reply the project maintainer declares this issue as "a simple 'bug' when leaving the command line tool and (...) not a security issue at all".

In LibTIFF 4.7.0 ist eine Schwachstelle entdeckt worden. Betroffen davon ist die Funktion _TIFFmallocExt/_TIFFCheckRealloc/TIFFHashSetNew/InitCCITTFax3 der Datei tools/tiffcmp.c der Komponente tiffcmp. Die Bearbeitung verursacht memory leak. Der Angriff muss auf lokaler Ebene erfolgen. Ein Angriff erfordert eine vergleichsweise hohe Komplexität. Sie ist schwierig auszunutzen. Der Exploit ist öffentlich verfügbar und könnte genutzt werden. Zur Zeit ist nicht genau klar, ob diese Schwachstelle in der besagten Form wirklich existiert. Der Patch wird als ed141286a37f6e5ddafb5069347ff5d587e7a4e0 bezeichnet. Es empfiehlt sich, einen Patch einzuspielen, um dieses Problem zu beheben.

PUBLISHED Reserved 2025-08-19 | Published 2025-08-19 | Updated 2025-10-01 | 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

Memory Leak

Denial of Service

Timeline

2025-08-19:Advisory disclosed
2025-08-19:VulDB entry created
2025-10-01:VulDB entry last update

Credits

HeureuxBuilding (VulDB User) reporter

References

vuldb.com/?id.320543 (VDB-320543 | LibTIFF tiffcmp tiffcmp.c InitCCITTFax3 memory leak) vdb-entry technical-description

vuldb.com/?ctiid.320543 (VDB-320543 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.630506 (Submit #630506 | libtiff tiffcmp 4.7.0+ (latest master branch) Memory Leak) third-party-advisory

vuldb.com/?submit.630507 (Submit #630507 | libtiff tiffcmp 4.7.0+ (latest master branch) Memory Leak (Duplicate)) third-party-advisory

gitlab.com/libtiff/libtiff/-/issues/728 issue-tracking

gitlab.com/libtiff/libtiff/-/merge_requests/747 patch

drive.google.com/...8-qU0ZM6seBzGNB3aPnX3G8/view?usp=sharing exploit

gitlab.com/...ommit/ed141286a37f6e5ddafb5069347ff5d587e7a4e0 patch

www.libtiff.org/ product

cve.org (CVE-2025-9165)

nvd.nist.gov (CVE-2025-9165)

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