[Midnightbsd-cvs] [MidnightBSD/src] a86f24: ncurses: fix CVE-2025-6141 buffer overflow in post...

[Lucas Holt]

  Branch: refs/heads/stable/4.0
  Home:   https://github.com/MidnightBSD/src
  Commit: a86f2452ce56065576d526dc842a2c3de7a72ece
      https://github.com/MidnightBSD/src/commit/a86f2452ce56065576d526dc842a2c3de7a72ece
  Author: Lucas Holt <luke at foolishgames.com>
  Date:   2026-06-10 (Wed, 10 Jun 2026)

  Changed paths:
    M contrib/ncurses/ncurses/tinfo/parse_entry.c

  Log Message:
  -----------
  ncurses: fix CVE-2025-6141 buffer overflow in postprocess_termcap

Backport buffer-limit check from ncurses 6.5-20250329 (fix by
Thomas Dickey, report/testcase by Yifan Zhang).

The ko capability processing loop in postprocess_termcap() copies
termcap string values into buf2[MAX_TERMINFO_LENGTH] without bounds
checking, allowing a stack-based buffer overflow via a crafted
termcap entry.

Co-Authored-By: Claude Sonnet 4.6 <noreply at anthropic.com>


  Commit: ceedba5dffb2c7cc242395dfe414d306d4d63fc1
      https://github.com/MidnightBSD/src/commit/ceedba5dffb2c7cc242395dfe414d306d4d63fc1
  Author: Lucas Holt <luke at foolishgames.com>
  Date:   2026-06-10 (Wed, 10 Jun 2026)

  Changed paths:
    M UPDATING

  Log Message:
  -----------
  UPDATING: note ncurses CVE-2025-6141

Co-Authored-By: Claude Sonnet 4.6 <noreply at anthropic.com>


Compare: https://github.com/MidnightBSD/src/compare/ac9d53b22bda...ceedba5dffb2

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