{"api_version":"1","generated_at":"2026-04-22T19:06:22+00:00","cve":"CVE-2021-43396","urls":{"html":"https://cve.report/CVE-2021-43396","api":"https://cve.report/api/cve/CVE-2021-43396.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-43396","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-43396"},"summary":{"title":"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 '\\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. 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