{
  "id": "CVE-2021-32765",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2021-10-04T21:15:12.527",
  "lastModified": "2022-12-07T01:52:55.903",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible."
    },
    {
      "lang": "es",
      "value": "Hiredis es una librer\u00eda cliente minimalista en C para la base de datos Redis. En las versiones afectadas, Hiredis es vulnerable al desbordamiento de enteros si se proporcionan datos del protocolo \"RESP\" \"multi-bulk\" maliciosamente dise\u00f1ados o corruptos. Cuando se analizan las respuestas \"multi-bulk\" (tipo array), hiredis no comprueba si \"count * sizeof(redisReply*)\" puede representarse en \"SIZE_MAX\". Si no puede, y la llamada a \"calloc()\" no hace por s\u00ed misma esta comprobaci\u00f3n, se producir\u00eda una asignaci\u00f3n corta y el consiguiente desbordamiento del b\u00fafer. Los usuarios de hiredis que no puedan actualizar pueden establecer la opci\u00f3n de contexto [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) a un valor lo suficientemente peque\u00f1o como para que no sea posible el desbordamiento"
    }
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          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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          "baseScore": 8.8,
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    {
      "url": "https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1e",
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