gsd-2021-43396
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
** DISPUTED ** In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious '\0' character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states "the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there's no security impact to the bug."
Aliases
Aliases
CVE-2021-43396


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-43396",
    "description": "** DISPUTED ** In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious \u0027\\0\u0027 character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states \"the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there\u0027s no security impact to the bug.\"",
    "id": "GSD-2021-43396",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-43396.html",
      "https://security.archlinux.org/CVE-2021-43396"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-43396"
      ],
      "details": "** DISPUTED ** In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious \u0027\\0\u0027 character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states \"the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there\u0027s no security impact to the bug.\"",
      "id": "GSD-2021-43396",
      "modified": "2023-12-13T01:23:26.585203Z",
      "schema_version": "1.4.0"
    }
  },
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            "value": "** DISPUTED ** In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious \u0027\\0\u0027 character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states \"the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there\u0027s no security impact to the bug.\""
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            "refsource": "MISC",
            "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=28524"
          },
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            "url": "https://sourceware.org/git/?p=glibc.git;a=commit;h=ff012870b2c02a62598c04daa1e54632e020fd7d"
          },
          {
            "name": "https://blog.tuxcare.com/vulnerability/vulnerability-in-iconv-identified-by-tuxcare-team-cve-2021-43396",
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            "url": "https://blog.tuxcare.com/vulnerability/vulnerability-in-iconv-identified-by-tuxcare-team-cve-2021-43396"
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            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
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            "value": "In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious \u0027\\0\u0027 character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states \"the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there\u0027s no security impact to the bug."
          },
          {
            "lang": "es",
            "value": "** EN DISPUTA ** En el archivo iconvdata/iso-2022-jp-3.c de la Biblioteca C de GNU (tambi\u00e9n conocida como glibc) 2.34, los atacantes remotos pueden forzar a iconv() a emitir un car\u00e1cter espurio \u0027\\0\u0027 a trav\u00e9s de datos ISO-2022-JP-3 manipulados que van acompa\u00f1ados de un reinicio de estado interno. Esto puede afectar a la integridad de los datos en ciertos casos de uso de iconv(). NOTA: el proveedor afirma que \"el fallo no puede ser invocado a trav\u00e9s de la entrada del usuario y requiere que iconv sea invocado con un inbuf NULL, lo que deber\u00eda requerir un fallo de aplicaci\u00f3n separado para hacerlo involuntariamente. Por lo tanto, el fallo no tiene impacto en la seguridad\"."
          }
        ],
        "id": "CVE-2021-43396",
        "lastModified": "2024-04-11T01:13:11.963",
        "metrics": {
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              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
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                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
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        "published": "2021-11-04T20:15:09.223",
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            "tags": [
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        "vulnStatus": "Modified",
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}


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