ubuntu-cve-2020-27545
Vulnerability from osv_ubuntu
Published
2023-04-16 00:15
Modified
2026-04-22 07:39
Summary
Details

libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dwarfdump",
            "binary_version": "20120410-2+deb7u2build0.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "dwarfutils",
        "purl": "pkg:deb/ubuntu/dwarfutils@20120410-2+deb7u2build0.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20120410-2",
        "20120410-2+deb7u2build0.16.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dwarfdump",
            "binary_version": "20180129-1"
          },
          {
            "binary_name": "libdwarf1",
            "binary_version": "20180129-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "dwarfutils",
        "purl": "pkg:deb/ubuntu/dwarfutils@20180129-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20170709-1",
        "20180129-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dwarfdump",
            "binary_version": "20200114-1"
          },
          {
            "binary_name": "libdwarf1",
            "binary_version": "20200114-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "dwarfutils",
        "purl": "pkg:deb/ubuntu/dwarfutils@20200114-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20180809-1",
        "20190529-1",
        "20191104-1",
        "20191104-1ubuntu1",
        "20200114-1"
      ]
    }
  ],
  "aliases": [],
  "details": "libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.",
  "id": "UBUNTU-CVE-2020-27545",
  "modified": "2026-04-22T07:39:36Z",
  "published": "2023-04-16T00:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-27545"
    },
    {
      "type": "REPORT",
      "url": "https://www.prevanders.net/dwarfbug.html#DW202010-001"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/davea42/libdwarf-code/commit/95f634808c01f1c61bbec56ed2395af997f397ea"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-27545"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-27545"
  ]
}



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