Mercurial > vim
view src/testdir/test_channel_pipe.py @ 33863:3b8089d550eb v9.0.2141
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Commit: https://github.com/vim/vim/commit/0fb375aae608d7306b4baf9c1f906961f32e2abf
Author: Christian Brabandt <cb@256bit.org>
Date: Wed Nov 29 10:23:39 2023 +0100
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Problem: [security]: buffer-overflow in suggest_trie_walk
Solution: Check n before using it as index into byts array
Basically, n as an index into the byts array, can point to beyond the byts
array. So let's double check, that n is within the expected range after
incrementing it from sp->ts_curi and bail out if it would be invalid.
Reported by @henices, thanks!
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 10 Dec 2023 15:16:03 +0100 |
parents | 06e3c6bac36d |
children |
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#!/usr/bin/python # # Server that will communicate over stdin/stderr # # This requires Python 2.6 or later. from __future__ import print_function import os import sys import time if __name__ == "__main__": if len(sys.argv) > 1: if sys.argv[1].startswith("err"): print(sys.argv[1], file=sys.stderr) sys.stderr.flush() elif sys.argv[1].startswith("incomplete"): print(sys.argv[1], end='') sys.stdout.flush() sys.exit(0) elif sys.argv[1].startswith("busy"): time.sleep(100) sys.exit(0) else: print(sys.argv[1]) sys.stdout.flush() if sys.argv[1].startswith("quit"): sys.exit(0) if os.getenv('CI'): try: import thread_util thread_util.set_high_priority() except Exception: pass while True: typed = sys.stdin.readline() if typed == "": # EOF -- stop break if typed.startswith("quit"): print("Goodbye!") sys.stdout.flush() break if typed.startswith("echo "): print(typed[5:-1]) sys.stdout.flush() if typed.startswith("echosplit "): for part in typed[10:-1].split('|'): sys.stdout.write(part) sys.stdout.flush() time.sleep(0.05) if typed.startswith("double "): print(typed[7:-1] + "\nAND " + typed[7:-1]) sys.stdout.flush() if typed.startswith("split "): print(typed[6:-1], end='') sys.stdout.flush() time.sleep(0.05) print(typed[6:-1], end='') sys.stdout.flush() time.sleep(0.05) print(typed[6:-1]) sys.stdout.flush() if typed.startswith("echoerr "): print(typed[8:-1], file=sys.stderr) sys.stderr.flush() if typed.startswith("doubleerr "): print(typed[10:-1] + "\nAND " + typed[10:-1], file=sys.stderr) sys.stderr.flush() if typed.startswith("XXX"): print(typed, end='') sys.stderr.flush() break