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CVE-2026-35369

Full vulnerability record from the local CVENow database.

Description

An argument parsing error in the kill utility of uutils coreutils incorrectly interprets kill -1 as a request to send the default signal (SIGTERM) to PID -1. Sending a signal to PID -1 causes the kernel to terminate all processes visible to the caller, potentially leading to a system crash or massive process termination. This differs from GNU coreutils, which correctly recognizes -1 as a signal number in this context and would instead report a missing PID argument.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-22 17:16:40.687000
Last modified
2026-10-25 23:10:00.167000
View original CVE JSON
{
  "id": "CVE-2026-35369",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-22T17:16:40.687",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An argument parsing error in the kill utility of uutils coreutils incorrectly interprets kill -1 as a request to send the default signal (SIGTERM) to PID -1. Sending a signal to PID -1 causes the kernel to terminate all processes visible to the caller, potentially leading to a system crash or massive process termination. This differs from GNU coreutils, which correctly recognizes -1 as a signal number in this context and would instead report a missing PID argument."
    },
    {
      "lang": "es",
      "value": "Un error de análisis de argumentos en la utilidad kill de uutils coreutils interpreta incorrectamente kill -1 como una solicitud para enviar la señal predeterminada (SIGTERM) al PID -1. Enviar una señal al PID -1 hace que el kernel termine todos los procesos visibles para el llamador, lo que podría llevar a una caída del sistema o a una terminación masiva de procesos. Esto difiere de GNU coreutils, que reconoce correctamente -1 como un número de señal en este contexto y en su lugar informaría un argumento PID faltante."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Uutils",
          "product": "coreutils",
          "defaultStatus": "unaffected",
          "collectionURL": "https://github.com/uutils",
          "packageName": "coreutils",
          "platforms": [
            "Linux",
            "Unix",
            "macOS"
          ],
          "repo": "https://github.com/uutils/coreutils",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.6.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
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        "type": "Secondary",
        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
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          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
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  "weaknesses": [
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      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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          "value": "CWE-20"
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  "references": [
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      "url": "https://github.com/uutils/coreutils/pull/9700",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Patch"
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    {
      "url": "https://github.com/uutils/coreutils/releases/tag/0.6.0",
      "source": "[email protected]",
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}