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Findings

CVE-2021-3826

Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and c…

Published Sep 1, 2022 · updated Oct 14, 2026 · gnu gcc

Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 1, 2022 · NIST NVD

    Detected

    Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

  2. Oct 14, 2026 · NIST NVD

    Updated

    Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

Affected

  • cpe fedoraproject/fedora35
  • cpe fedoraproject/fedora36
  • cpe fedoraproject/fedora37
  • cpe gnu/gcc11.2

Sources

  • CVE.orgCVE-2021-3826

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2021-3826

    Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

    nvd.nist.gov

References