Description

CHMLib through 2bef8d0, as used in SumatraPDF and other products, has a chm_lib.c _chm_decompress_block integer overflow. There is a resultant heap-based buffer overflow in _chm_fetch_bytes.

INFO

Published Date :

2025-07-04T00:00:00.000Z

Last Modified :

2025-07-08T14:29:58.784Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2025-48172 vulnerability.

Vendors Products
Chmlib
  • Chmlib
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-48172.

URL Resource
https://drive.google.com/file/d/1XpulFyCGlq7Szzg5RsH-eRwZ6OyuSozl/view?usp=sharing cve-icon cve-icon cve-icon
https://drive.google.com/file/d/1wq51px42eoJz2VQ1Qu9ObPVQVom9T9H_/view?usp=sharing cve-icon cve-icon
https://github.com/jedwing/CHMLib/blob/2bef8d063ec7d88a8de6fd9f0513ea42ac0fa21f/src/chm_lib.c#L1386 cve-icon cve-icon
https://github.com/sumatrapdfreader/sumatrapdf/commit/08179946a745cf1605e4b9670942ec1a6e1f4c5d cve-icon cve-icon
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