{
  "id": "CVE-2020-8833",
  "sourceIdentifier": "security@ubuntu.com",
  "published": "2020-04-22T22:15:12.577",
  "lastModified": "2022-10-07T15:14:27.967",
  "vulnStatus": "Analyzed",
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      "value": "Time-of-check Time-of-use Race Condition vulnerability on crash report ownership change in Apport allows for a possible privilege escalation opportunity. If fs.protected_symlinks is disabled, this can be exploited between the os.open and os.chown calls when the Apport cron script clears out crash files of size 0. A symlink with the same name as the deleted file can then be created upon which chown will be called, changing the file owner to root. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Condici\u00f3n de Carrera de tipo Time-of-check Time-of-use en el cambio de propiedad del reporte de bloqueo en Apport, permite una posible oportunidad de escalada de privilegios. Si fs.protected_symlinks est\u00e1 deshabilitado, esto puede ser explotado entre las llamadas de os.open y os.chown cuando el script cron de Apport borra los archivos bloqueados de tama\u00f1o 0. Un enlace simb\u00f3lico con el mismo nombre que el archivo eliminado puede entonces ser creado a partir de que chown ser\u00eda llamado, cambiando el propietario del archivo a root. Corregido en las versiones 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 y 2.20.11-0ubuntu22."
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