Bug with TLSv1.3 session resumption (most likely caused by concurrency bug)

Fri Mar 19 13:15:36 UTC 2021

I was wondering if there is any update or anything I can help with ?

Bye
Norman 

> Am 04.03.2021 um 18:51 schrieb Jamil Nimeh <jamil.j.nimeh at oracle.com>:
> 
> 
> I already replied to Norman directly (because apparently I cannot seem to find my Reply-all button before my morning caffeine!).  It does look quite a bit like 8241248 and that issue is in my bug queue.  I haven't started work on it yet, but now that Norman has provided me some links to a reproducer I can give it a spin and see if I can make the bug happen locally (Thanks Norman!)
> 
> --Jamil
> 
>> On 3/4/2021 8:22 AM, Xue-Lei Fan wrote:
>> Forward to security-dev.
>> 
>> Xuelei
>> 
>>> On Mar 4, 2021, at 6:11 AM, Norman Maurer <norman.maurer at googlemail.com> wrote:
>>> 
>>> Hi there,
>>> 
>>> I think I found a bug in the TLSv1.3 session cache implementation which sometimes can cause failures during session resumption. 
>>> The cause of this sometimes show up as NPE:
>>> 
>>> javax.net.ssl.SSLException: Session has no PSK
>>> at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133)
>>> at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
>>> at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:336)
>>> at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:292)
>>> at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:283)
>>> at java.base/sun.security.ssl.PreSharedKeyExtension.checkBinder(PreSharedKeyExtension.java:537)
>>> at java.base/sun.security.ssl.PreSharedKeyExtension$CHPreSharedKeyUpdate.consume(PreSharedKeyExtension.java:528)
>>> at java.base/sun.security.ssl.SSLExtension.consumeOnTrade(SSLExtension.java:583)
>>> at java.base/sun.security.ssl.SSLExtensions.consumeOnTrade(SSLExtensions.java:222)
>>> at java.base/sun.security.ssl.ServerHello$T13ServerHelloProducer.produce(ServerHello.java:539)
>>> at java.base/sun.security.ssl.SSLHandshake.produce(SSLHandshake.java:436)
>>> at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.goServerHello(ClientHello.java:1234)
>>> at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.consume(ClientHello.java:1170)
>>> at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.onClientHello(ClientHello.java:852)
>>> at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.consume(ClientHello.java:813)
>>> at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392)
>>> at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:443)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1074)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1061)
>>> at java.base/java.security.AccessController.doPrivileged(Native Method)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask.run(SSLEngineImpl.java:1008)
>>> at io.netty.handler.ssl.SslHandler.runAllDelegatedTasks(SslHandler.java:1557)
>>> at io.netty.handler.ssl.SslHandler.runDelegatedTasks(SslHandler.java:1571)
>>> at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1455)
>>> at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1282)
>>> at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1329)
>>> at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:508)
>>> at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:447)
>>> at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:276)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
>>> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
>>> at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
>>> at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
>>> at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
>>> at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)
>>> at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
>>> at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
>>> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
>>> at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
>>> at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
>>> at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
>>> at java.base/java.lang.Thread.run(Thread.java:834)
>>> java.lang.NullPointerException
>>> at java.base/sun.security.ssl.HKDF.extract(HKDF.java:93)
>>> at java.base/sun.security.ssl.HKDF.extract(HKDF.java:119)
>>> at java.base/sun.security.ssl.ServerHello.setUpPskKD(ServerHello.java:1169)
>>> at java.base/sun.security.ssl.ServerHello$T13ServerHelloProducer.produce(ServerHello.java:547)
>>> at java.base/sun.security.ssl.SSLHandshake.produce(SSLHandshake.java:436)
>>> at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.goServerHello(ClientHello.java:1234)
>>> at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.consume(ClientHello.java:1170)
>>> at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.onClientHello(ClientHello.java:852)
>>> at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.consume(ClientHello.java:813)
>>> at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392)
>>> at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:443)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1074)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1061)
>>> at java.base/java.security.AccessController.doPrivileged(Native Method)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask.run(SSLEngineImpl.java:1008)
>>> at io.netty.handler.ssl.SslHandler.runAllDelegatedTasks(SslHandler.java:1557)
>>> at io.netty.handler.ssl.SslHandler.runDelegatedTasks(SslHandler.java:1571)
>>> at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1455)
>>> at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1282)
>>> at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1329)
>>> at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:508)
>>> at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:447)
>>> at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:276)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
>>> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
>>> at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
>>> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
>>> at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
>>> at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
>>> at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)
>>> at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
>>> at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
>>> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
>>> at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
>>> at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
>>> at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
>>> at java.base/java.lang.Thread.run(Thread.java:834)
>>> 
>>> 
>>> Other times the NPE is not included but it still fails with something like:
>>> 
>>> Caused by: javax.net.ssl.SSLException: Session has no PSK
>>> at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133)
>>> at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
>>> at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:336)
>>> at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:292)
>>> at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:283)
>>> at java.base/sun.security.ssl.PreSharedKeyExtension.checkBinder(PreSharedKeyExtension.java:537)
>>> at java.base/sun.security.ssl.PreSharedKeyExtension$CHPreSharedKeyUpdate.consume(PreSharedKeyExtension.java:528)
>>> at java.base/sun.security.ssl.SSLExtension.consumeOnTrade(SSLExtension.java:583)
>>> at java.base/sun.security.ssl.SSLExtensions.consumeOnTrade(SSLExtensions.java:222)
>>> at java.base/sun.security.ssl.ServerHello$T13ServerHelloProducer.produce(ServerHello.java:539)
>>> at java.base/sun.security.ssl.SSLHandshake.produce(SSLHandshake.java:436)
>>> at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.goServerHello(ClientHello.java:1234)
>>> at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.consume(ClientHello.java:1170)
>>> at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.onClientHello(ClientHello.java:852)
>>> at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.consume(ClientHello.java:813)
>>> at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392)
>>> at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:443)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1074)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1061)
>>> at java.base/java.security.AccessController.doPrivileged(Native Method)
>>> at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask.run(SSLEngineImpl.java:1008)
>>> at io.netty.handler.ssl.SslHandler.runAllDelegatedTasks(SslHandler.java:1557)
>>> at io.netty.handler.ssl.SslHandler.runDelegatedTasks(SslHandler.java:1571)
>>> at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1455)
>>> at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1282)
>>> at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1329)
>>> at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:508)
>>> at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:447)
>>> ... 17 common frames omitted
>>> 
>>> Looking at the first stacktrace this seems to be related to:
>>> 
>>> https://bugs.openjdk.java.net/browse/JDK-8241248
>>> 
>>> 
>>> Unfortunately I don’t have a reproducer which uses the JDK only here but I can reproduce this with Netty that uses OpenSSL on the client side and the JDK SSLEngine on the server side.
>>> I can reproduce this with the latest JDK11 release but can't with JDK15. Also what makes me believe it may be a concurrency bug is that only some handshakes fail. Like 70 out of 2600 fail.
>>> 
>>> While the reproducer also involves netty I am wondering if you would still be interested in it ? It should be quite straight forward to run locally for you.
>>> 
>>> The code that can reproduce it is here:
>>> https://github.com/netty/netty/pull/10994#issuecomment-787976965
>>> 
>>> Also you will need to use this branch:
>>> https://github.com/netty/netty/tree/ssl_cache_revamp
>>> 
>>> 
>>> Please don’t hesitate if you have questions,
>>> Norman
>>> 
>>> 
>>> 
>> 
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