LibTIFF up to 4.5.1 tiffcp.c integer overflow

Summaryinfo

A vulnerability has been found in LibTIFF up to 4.5.1 and classified as critical. This affects an unknown part of the file tiffcp.c. Performing a manipulation results in integer overflow. This vulnerability is known as CVE-2023-40745. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in LibTIFF up to 4.5.1 (Image Processing Software). This affects an unknown part of the file tiffcp.c. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

LibTIFF is vulnerable to an integer overflow. This flaw allows remote attackers to cause a denial of service (application crash) or possibly execute an arbitrary code via a crafted tiff image, which triggers a heap-based buffer overflow.

The weakness was published 08/28/2023. The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2023-40745 since 08/25/2023. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/17/2025).

The vulnerability scanner Nessus provides a plugin with the ID 240052 (TencentOS Server 4: libtiff (TSSA-2024:0785)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (240052). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Image Processing Software

Name

• LibTIFF

Version

• 4.5.0
• 4.5.1

License

• open-source

Website

• Product: http://www.libtiff.org/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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