Google Chrome Network use-after-free heap corruption flaw

#!/usr/bin/env python3
# check_chrome_149.py
# Determine whether local Google Chrome is at or above 149.0.7827.53
# Outputs one of: VULNERABLE / PATCHED / UNKNOWN
# Exit codes: 0=PATCHED, 1=VULNERABLE, 2=UNKNOWN

import os
import platform
import re
import shutil
import subprocess
import sys
from pathlib import Path

MIN_VERSION = (149, 0, 7827, 53)
VERSION_RE = re.compile(r'(\d+)\.(\d+)\.(\d+)\.(\d+)')

def parse_version(text):
    m = VERSION_RE.search(text or '')
    if not m:
        return None
    return tuple(int(x) for x in m.groups())

def run_version_command(cmd):
    try:
        p = subprocess.run(cmd, capture_output=True, text=True, timeout=10)
        out = (p.stdout or '') + ' ' + (p.stderr or '')
        return parse_version(out)
    except Exception:
        return None

def windows_candidates():
    candidates = []
    for base in [os.environ.get('ProgramFiles'), os.environ.get('ProgramFiles(x86)'), os.environ.get('LocalAppData')]:
        if not base:
            continue
        candidates.append(Path(base) / 'Google' / 'Chrome' / 'Application' / 'chrome.exe')
    which = shutil.which('chrome.exe')
    if which:
        candidates.append(Path(which))
    return candidates

def mac_candidates():
    return [
        Path('/Applications/Google Chrome.app/Contents/MacOS/Google Chrome'),
        Path.home() / 'Applications' / 'Google Chrome.app' / 'Contents' / 'MacOS' / 'Google Chrome',
    ]

def linux_candidates():
    bins = []
    for name in ['google-chrome', 'google-chrome-stable', 'chrome']:
        which = shutil.which(name)
        if which:
            bins.append(Path(which))
    bins.extend([
        Path('/usr/bin/google-chrome'),
        Path('/usr/bin/google-chrome-stable'),
        Path('/opt/google/chrome/chrome'),
    ])
    return bins

def find_installed_version():
    system = platform.system().lower()
    candidates = []
    if system == 'windows':
        candidates = windows_candidates()
    elif system == 'darwin':
        candidates = mac_candidates()
    else:
        candidates = linux_candidates()

    checked = set()
    for path in candidates:
        try:
            path = path.resolve()
        except Exception:
            pass
        key = str(path)
        if key in checked:
            continue
        checked.add(key)
        if path.exists():
            v = run_version_command([str(path), '--version'])
            if v:
                return v, str(path)

    # Fallback: try generic commands
    for name in ['google-chrome', 'google-chrome-stable', 'chrome', 'chrome.exe']:
        which = shutil.which(name)
        if which:
            v = run_version_command([which, '--version'])
            if v:
                return v, which

    return None, None

def compare_versions(found, minimum):
    if found is None:
        return None
    if found < minimum:
        return -1
    return 0

def fmt(v):
    return '.'.join(str(x) for x in v)

if __name__ == '__main__':
    found, path = find_installed_version()
    if found is None:
        print('UNKNOWN - Google Chrome not found or version could not be parsed')
        sys.exit(2)

    cmp_result = compare_versions(found, MIN_VERSION)
    if cmp_result == -1:
        print(f'VULNERABLE - Found Chrome {fmt(found)} at {path}; requires >= {fmt(MIN_VERSION)}')
        sys.exit(1)
    else:
        print(f'PATCHED - Found Chrome {fmt(found)} at {path}; meets >= {fmt(MIN_VERSION)}')
        sys.exit(0)