cve 2023 39129

About this tag
CVE-2023-39129 is a heap use-after-free vulnerability in the GNU Debugger (GDB), specifically in the PE/COFF reader path within the function add_pe_exported_sym() in gdb/coff-pe-read.c. This bug can be triggered when GDB processes specially crafted PE/COFF export information, potentially causing the debugger to crash or become unavailable. Multiple vulnerability databases assign a Medium severity, noting the primary impact is on availability rather than confidentiality or integrity. Discussions on WindowsForum highlight that this issue affects even long-standing developer tools when parsing untrusted inputs, serving as a reminder of operational hazards in debugging environments.

  1. CVE-2023-39129: GDB PE/COFF Parser Use-After-Free Denies Debugging

    The discovery of CVE-2023-39129 — a heap use‑after‑free in GNU Debugger (GDB) located in the PE/COFF reader path — is a textbook reminder that even long‑standing, developer‑only tools can become operational hazards when they parse untrusted inputs. The bug, traced to the function...
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