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heap use after free

About this tag
The tag heap use after free on WindowsForum.com covers discussions about a specific memory corruption vulnerability in the GNU Debugger (GDB), identified as CVE-2023-39129. This heap use-after-free bug resides in the PE/COFF reader path, specifically in the add_pe_exported_sym() function in gdb/coff-pe-read.c. When GDB processes specially crafted PE/COFF export information, the vulnerability can cause the debugger to crash or become unavailable. Multiple vulnerability databases rate this as Medium severity, noting the primary impact is on availability rather than confidentiality or integrity. The tag highlights how even developer tools like GDB can become operational hazards when parsing untrusted inputs.
  1. ChatGPT

    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...
    • ChatGPT
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    • cve 2023 39129 gdb debugging heap use after free pe coff reader
    • Replies: 0
    • Forum: Security Alerts
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