SAIL Image Decoding Library 0.9.8 WebP Image Decoder integer overflow

Summaryinfo

A vulnerability was found in SAIL Image Decoding Library 0.9.8. It has been rated as critical. This affects an unknown function of the component WebP Image Decoder. This manipulation causes integer overflow. This vulnerability is tracked as CVE-2025-52456. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in SAIL Image Decoding Library 0.9.8. It has been declared as critical. Affected by this vulnerability is an unknown function of the component WebP Image Decoder. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-680. The product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A memory corruption vulnerability exists in the WebP Image Decoding functionality of the SAIL Image Decoding Library v0.9.8. When loading a specially crafted .webp animation an integer overflow can be made to occur when calculating the stride for decoding. Afterwards, this will cause a heap-based buffer to overflow when decoding the image which can lead to remote code execution. An attacker will need to convince the library to read a file to trigger this vulnerability.

It is possible to read the advisory at talosintelligence.com. This vulnerability is known as CVE-2025-52456 since 07/17/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/03/2025).

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

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Productinfo

Type

• Software Library

Vendor

• SAIL

Name

• Image Decoding Library

Version

• 0.9.8

CPE 2.3info

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CPE 2.2info

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