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8020637: Permissions.readObject doesn't enforce proper Class to PermissionCollection mappings

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Reviewed-by: weijun
This commit is contained in:
Sean Mullan 2019-04-09 08:56:15 -04:00
parent 9a97b54211
commit 8b8759de8d
2 changed files with 165 additions and 15 deletions
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55
src/java.base/share/classes/java/security/Permissions.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -25,21 +25,20 @@
package java.security;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.NoSuchElementException;
import java.util.Map;
import java.util.HashMap;
import java.util.List;
import java.util.Iterator;
import java.util.Collections;
import java.util.concurrent.ConcurrentHashMap;
import java.io.Serializable;
import java.io.ObjectStreamField;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import java.io.InvalidObjectException;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamField;
import java.io.Serializable;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.concurrent.ConcurrentHashMap;
/**
* This class represents a heterogeneous collection of Permissions. That is,
@ -392,6 +391,22 @@ implements Serializable
permsMap = new ConcurrentHashMap<>(perms.size()*2);
permsMap.putAll(perms);
// Check that Class is mapped to PermissionCollection containing
// Permissions of the same class
for (Map.Entry<Class<?>, PermissionCollection> e : perms.entrySet()) {
Class<?> k = e.getKey();
PermissionCollection v = e.getValue();
Enumeration<Permission> en = v.elements();
while (en.hasMoreElements()) {
Permission p = en.nextElement();
if (!k.equals(p.getClass())) {
throw new InvalidObjectException("Permission with class " +
k + " incorrectly mapped to PermissionCollection " +
"containing Permission with " + p.getClass());
}
}
}
// Set hasUnresolved
UnresolvedPermissionCollection uc =
(UnresolvedPermissionCollection) permsMap.get(UnresolvedPermission.class);
@ -584,5 +599,15 @@ implements Serializable
(Hashtable<Permission, Permission>)gfields.get("perms", null);
permsMap = new ConcurrentHashMap<>(perms.size()*2);
permsMap.putAll(perms);
// check that the Permission key and value are the same object
for (Map.Entry<Permission, Permission> e : perms.entrySet()) {
Permission k = e.getKey();
Permission v = e.getValue();
if (k != v) {
throw new InvalidObjectException("Permission (" + k +
") incorrectly mapped to Permission (" + v + ")");
}
}
}
}