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Medium

Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files

Type: advisorySources: OSV

A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-6844
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 16:18 UTC · Revision 1

Source evidence

Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files

core-osv · Original source

Published 22 Apr 2026, 08:37 UTC

A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.

osv:CVE-2026-6844
Complete source record
{
  "id": "8f215dd83b10de4dd9eaef36c0c41598e40665d2e06e5c9b7412ea5e8112cebb",
  "url": "https://osv.dev/vulnerability/CVE-2026-6844",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Binutils: binutils: denial of service vulnerabilities in readelf via crafted elf files",
    "summary": "A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.",
    "evidence": "osv:CVE-2026-6844",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-6844",
      "aliases": [
        "CVE-2026-6844"
      ],
      "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": "a44161c313d46a1b10fd764728a089c26037710a"
                },
                {
                  "last_affected": "1f1c02597cc199227226251a2ea51fe5f44b4d6d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0"
                      },
                      {
                        "last_affected": "4.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0"
                      },
                      {
                        "last_affected": "7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0"
                      },
                      {
                        "last_affected": "8.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.0",
            "7.0",
            "8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6844.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.162845460Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/downloads/content/package-browser/",
        "https://access.redhat.com/security/cve/CVE-2026-6844",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6844.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-6844",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2460016"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-400"
        ],
        "cna_assigner": "redhat",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6844.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-6844",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497252,
  "published_at": "2026-04-22T08:37:09.794+00:00"
}