ghsa-f8m3-jpxr-hm5x
Vulnerability from github
Published
2022-05-24 17:24
Modified
2024-09-06 15:56
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.5 (High) - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
bsdiff4 out-of-bounds write via patch file
Details

A buffer overflow in the patching routine of bsdiff4 before 1.2.0 allows an attacker to write to heap memory (beyond allocated bounds) via a crafted patch file.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "bsdiff4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-15904"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-02-23T20:37:09Z",
    "nvd_published_at": "2020-07-22T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "A buffer overflow in the patching routine of bsdiff4 before 1.2.0 allows an attacker to write to heap memory (beyond allocated bounds) via a crafted patch file.",
  "id": "GHSA-f8m3-jpxr-hm5x",
  "modified": "2024-09-06T15:56:54Z",
  "published": "2022-05-24T17:24:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15904"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ilanschnell/bsdiff4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ilanschnell/bsdiff4/blob/9a84c2ee01f5ba0742d18c9f3b3d5244ae7fb302/CHANGELOG.txt#L30-L31"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/bsdiff4/PYSEC-2020-30.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "bsdiff4 out-of-bounds write via patch file"
}


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