GHSA-PP7H-53GX-MX7R

Vulnerability from github – Published: 2020-09-02 15:26 – Updated: 2022-05-26 20:43
VLAI?
Summary
Remote Memory Exposure in bl
Details

A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.

Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "bl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "bl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "bl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.0"
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "bl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-8244"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125",
      "CWE-126"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-09-02T15:26:05Z",
    "nvd_published_at": "2020-08-30T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A buffer over-read vulnerability exists in bl \u003c4.0.3, \u003c3.0.1, \u003c2.2.1, and \u003c1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.",
  "id": "GHSA-pp7h-53gx-mx7r",
  "modified": "2022-05-26T20:43:51Z",
  "published": "2020-09-02T15:26:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8244"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rvagg/bl/commit/8a8c13c880e2bef519133ea43e0e9b78b5d0c91e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rvagg/bl/commit/d3e240e3b8ba4048d3c76ef5fb9dd1f8872d3190"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rvagg/bl/commit/dacc4ac7d5fcd6201bcf26fbd886951be9537466"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/966347"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00028.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Remote Memory Exposure in bl"
}


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