Skip to content
Heist/ feed
Back to feed
Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-35493

A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-35493
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 05:07 UTC · Revision 1

Source evidence

CVE-2020-35493

core-osv · Original source

Published 4 Jan 2021, 15:15 UTC

A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.

osv:CVE-2020-35493
Complete source record
{
  "id": "5f2965c760da767128cc8a9d58e22c33063a521341b2269f8c336c2518b6bc93",
  "url": "https://osv.dev/vulnerability/CVE-2020-35493",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-35493",
    "summary": "A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.",
    "evidence": "osv:CVE-2020-35493",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-35493",
      "aliases": [
        "CVE-2020-35493"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://sourceware.org/git/binutils-gdb.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d7f734bc7e9e5fb6c33b433973b57e1eed3a7e9f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.34"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "gdb-9-branchpoint",
            "gdb-8.3-branchpoint",
            "users/ARM/embedded-gdb-master-2018q4",
            "users/ARM/embedded-binutils-master-2018q4",
            "gdb-8.2-branchpoint",
            "gdb-8.1-branchpoint",
            "users/ARM/embedded-gdb-master-2017q4",
            "users/ARM/embedded-binutils-master-2017q4",
            "gdb-8.0-branchpoint",
            "users/ARM/embedded-binutils-master-2016q4",
            "gdb-7.12-branchpoint",
            "gdb-7.11-branchpoint",
            "gdb-7.10-branchpoint",
            "gdb-7.9-branchpoint",
            "gdb-7.8-branchpoint",
            "gdb-7.7-branchpoint",
            "gdb_7_6-branchpoint",
            "gdb_7_5-branchpoint",
            "gdb_7_4-branchpoint",
            "gdb_7_3-branchpoint",
            "gdb_7_2-branchpoint",
            "gdb_7_1-branchpoint",
            "gdb_7_0-branchpoint",
            "gdb_6_8-branchpoint",
            "gdb_6_7-branchpoint",
            "gdb_6_6-branchpoint",
            "gdb_6_5-branchpoint",
            "gdb_6_4-branchpoint",
            "gdb_6_3-branchpoint",
            "gdb_6_2-branchpoint",
            "gdb_6_1-branchpoint",
            "gdb_6_0-branchpoint",
            "gdb_5_3-branchpoint",
            "gdb_5_2-branchpoint",
            "gdb-4_18-branchpoint"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35493.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:24.804816729Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KOK3QWSVOUJWJ54HVGIFWNLWQ5ZY4S6/",
        "https://security.gentoo.org/glsa/202107-24",
        "https://security.netapp.com/advisory/ntap-20210212-0007/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1911437"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "32"
                  },
                  {
                    "last_affected": "32"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-35493",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431222,
  "published_at": "2021-01-04T15:15:12.777+00:00"
}