ubuntu-cve-2020-36846
Vulnerability from osv_ubuntu
Published
2025-05-30 01:15
Modified
2026-05-20 14:52
Summary
Details

A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.  Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libio-compress-brotli-perl",
            "binary_version": "0.004001-2build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libio-compress-brotli-perl",
        "purl": "pkg:deb/ubuntu/libio-compress-brotli-perl@0.004001-2build3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.004001-2",
        "0.004001-2build1",
        "0.004001-2build2",
        "0.004001-2build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libio-compress-brotli-perl",
            "binary_version": "0.004001-2build4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libio-compress-brotli-perl",
        "purl": "pkg:deb/ubuntu/libio-compress-brotli-perl@0.004001-2build4?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.004001-2build4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libio-compress-brotli-perl",
            "binary_version": "0.019000-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libio-compress-brotli-perl",
        "purl": "pkg:deb/ubuntu/libio-compress-brotli-perl@0.019000-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.004001-2build4",
        "0.019000-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.\u00a0 Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007\u00a0or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits.",
  "id": "UBUNTU-CVE-2020-36846",
  "modified": "2026-05-20T14:52:44Z",
  "published": "2025-05-30T01:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-36846"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-36846"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/30005245/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/google/brotli/pull/826"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/timlegge/perl-IO-Compress-Brotli/blob/8b44c83b23bb4658179e1494af4b725a1bc476bc/Changes#L52"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/advisories/GHSA-5v8v-66v8-mwm7"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6"
    },
    {
      "type": "REPORT",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8927"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-36846"
  ]
}



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