github - ghsa-rpc6-w47v-qqr6

ghsa-rpc6-w47v-qqr6

Vulnerability from github

Published

2025-07-04 15:31

Modified

2025-07-04 15:31

Severity ?

5.6 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Details

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.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-48172"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-04T13:15:25Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-rpc6-w47v-qqr6",
  "modified": "2025-07-04T15:31:08Z",
  "published": "2025-07-04T15:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48172"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sumatrapdfreader/sumatrapdf/commit/08179946a745cf1605e4b9670942ec1a6e1f4c5d"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1XpulFyCGlq7Szzg5RsH-eRwZ6OyuSozl/view?usp=sharing"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1wq51px42eoJz2VQ1Qu9ObPVQVom9T9H_/view?usp=sharing"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jedwing/CHMLib/blob/2bef8d063ec7d88a8de6fd9f0513ea42ac0fa21f/src/chm_lib.c#L1386"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-48172 (GCVE-0-2025-48172)

Vulnerability from cvelistv5

Published

2025-07-04 00:00

Modified

2025-07-08 14:29

Severity ?

5.6 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

CWE

CWE-190 - Integer Overflow or Wraparound

Summary

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.

References

►

URL

Tags

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

Impacted products

	Vendor	Product	Version
	CHMLib	CHMLib	Version: 0

Show details on NVD website

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        "metrics": [
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                  },
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-08T14:10:02.999001Z",
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      "metrics": [
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    "datePublished": "2025-07-04T00:00:00.000Z",
    "dateReserved": "2025-05-16T00:00:00.000Z",
    "dateUpdated": "2025-07-08T14:29:58.784Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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