CVE-2018-16083 : Detail

CVE-2018-16083

8.8
/
High
Overflow
18.31%V4
Network
2019-01-09
18h00 +00:00
2019-01-10
09h57 +00:00
CVE.org
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CVE Descriptions

An out of bounds read in forward error correction code in WebRTC in Google Chrome prior to 69.0.3497.81 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-125 Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.

Metrics

Metrics Score Severity CVSS Vector Source
V3.0 8.8 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Network

A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from routers).

Attack Complexity

This metric describes the conditions beyond the attacker's control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.

User Interaction

This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise of the vulnerable component.

Required

Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited. For example, a successful exploit may only be possible during the installation of an application by a system administrator.

Base: Scope Metrics

An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges.

Scope

Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports.

Unchanged

An exploited vulnerability can only affect resources managed by the same authority. In this case the vulnerable component and the impacted component are the same.

Base: Impact Metrics

The Impact metrics refer to the properties of the impacted component.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence that one has in the description of a vulnerability.

Environmental Metrics

 nvd@nist.gov
V2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 45444

Publication date : 2018-09-20 22h00 +00:00
Author : Google Security Research
EDB Verified : Yes

There is an out-of-bounds read in FEC processing in WebRTC. If a very short RTP packet is received, FEC will assume the packet is longer and process data outside of the allocated buffer. This bug causes the following ASAN crash: ==109993==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61b003b7ff70 at pc 0x55e01a250cd1 bp 0x7fa3af7abc40 sp 0x7fa3af7abc38 READ of size 1 at 0x61b003b7ff70 thread T15 (Chrome_libJingl) #0 0x55e01a250cd0 in XorPayloads third_party/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc:615:34 #1 0x55e01a250cd0 in webrtc::ForwardErrorCorrection::RecoverPacket(webrtc::ForwardErrorCorrection::ReceivedFecPacket const&, webrtc::ForwardErrorCorrection::RecoveredPacket*) third_party/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc:630 #2 0x55e01a251162 in webrtc::ForwardErrorCorrection::AttemptRecovery(std::__1::list<std::__1::unique_ptr<webrtc::ForwardErrorCorrection::RecoveredPacket, std::__1::default_delete<webrtc::ForwardErrorCorrection::RecoveredPacket> >, std::__1::allocator<std::__1::unique_ptr<webrtc::ForwardErrorCorrection::RecoveredPacket, std::__1::default_delete<webrtc::ForwardErrorCorrection::RecoveredPacket> > > >*) third_party/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc:652:12 #3 0x55e01a251b12 in webrtc::ForwardErrorCorrection::DecodeFec(webrtc::ForwardErrorCorrection::ReceivedPacket const&, std::__1::list<std::__1::unique_ptr<webrtc::ForwardErrorCorrection::RecoveredPacket, std::__1::default_delete<webrtc::ForwardErrorCorrection::RecoveredPacket> >, std::__1::allocator<std::__1::unique_ptr<webrtc::ForwardErrorCorrection::RecoveredPacket, std::__1::default_delete<webrtc::ForwardErrorCorrection::RecoveredPacket> > > >*) third_party/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc:739:3 #4 0x55e01a4c5595 in webrtc::UlpfecReceiverImpl::ProcessReceivedFec() third_party/webrtc/modules/rtp_rtcp/source/ulpfec_receiver_impl.cc:248:11 #5 0x55e01a4a1bb9 in webrtc::RtpVideoStreamReceiver::ParseAndHandleEncapsulatingHeader(unsigned char const*, unsigned long, webrtc::RTPHeader const&) third_party/webrtc/video/rtp_video_stream_receiver.cc:419:23 #6 0x55e01a49f05b in webrtc::RtpVideoStreamReceiver::ReceivePacket(unsigned char const*, unsigned long, webrtc::RTPHeader const&) third_party/webrtc/video/rtp_video_stream_receiver.cc:390:5 #7 0x55e01a49fcf2 in webrtc::RtpVideoStreamReceiver::OnRtpPacket(webrtc::RtpPacketReceived const&) third_party/webrtc/video/rtp_video_stream_receiver.cc:290:3 #8 0x55e009a368a1 in webrtc::RtpDemuxer::OnRtpPacket(webrtc::RtpPacketReceived const&) third_party/webrtc/call/rtp_demuxer.cc:157:11 #9 0x55e009a3b6e1 in webrtc::RtpStreamReceiverController::OnRtpPacket(webrtc::RtpPacketReceived const&) third_party/webrtc/call/rtp_stream_receiver_controller.cc:55:19 #10 0x55e01a231339 in webrtc::internal::Call::DeliverRtp(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) third_party/webrtc/call/call.cc:1321:36 #11 0x55e01a232300 in webrtc::internal::Call::DeliverPacket(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) third_party/webrtc/call/call.cc:1361:10 #12 0x55e01a95d341 in cricket::WebRtcVideoChannel::OnPacketReceived(rtc::CopyOnWriteBuffer*, rtc::PacketTime const&) third_party/webrtc/media/engine/webrtcvideoengine.cc:1441:26 #13 0x55e01a1d8dc2 in cricket::BaseChannel::ProcessPacket(bool, rtc::CopyOnWriteBuffer const&, rtc::PacketTime const&) third_party/webrtc/pc/channel.cc #14 0x55e01a1f6760 in rtc::AsyncInvoker::OnMessage(rtc::Message*) third_party/webrtc/rtc_base/asyncinvoker.cc:45:22 #15 0x55e01a0a6aa1 in jingle_glue::JingleThreadWrapper::Dispatch(rtc::Message*) jingle/glue/thread_wrapper.cc:157:22 #16 0x55e01a0a7d7e in jingle_glue::JingleThreadWrapper::RunTask(int) jingle/glue/thread_wrapper.cc:279:7 #17 0x55e00d52b6f5 in Run base/callback.h:96:12 #18 0x55e00d52b6f5 in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) base/debug/task_annotator.cc:101 #19 0x55e00d5881d5 in base::MessageLoop::RunTask(base::PendingTask*) base/message_loop/message_loop.cc:319:25 #20 0x55e00d589444 in DeferOrRunPendingTask base/message_loop/message_loop.cc:329:5 #21 0x55e00d589444 in base::MessageLoop::DoWork() base/message_loop/message_loop.cc:373 #22 0x55e00d591acf in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) base/message_loop/message_pump_default.cc:37:31 #23 0x55e00d600551 in base::RunLoop::Run() base/run_loop.cc:102:14 #24 0x55e00d6878b4 in base::Thread::ThreadMain() base/threading/thread.cc:337:3 #25 0x55e00d73c694 in base::(anonymous namespace)::ThreadFunc(void*) base/threading/platform_thread_posix.cc:76:13 #26 0x7fa3d586f493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493) 0x61b003b7ff70 is located 0 bytes to the right of 1520-byte region [0x61b003b7f980,0x61b003b7ff70) allocated by thread T15 (Chrome_libJingl) here: #0 0x55e00607ef92 in operator new(unsigned long) /b/build/slave/linux_upload_clang/build/src/third_party/llvm/compiler-rt/lib/asan/asan_new_delete.cc:93:3 #1 0x55e01a4c3eeb in webrtc::UlpfecReceiverImpl::AddReceivedRedPacket(webrtc::RTPHeader const&, unsigned char const*, unsigned long, unsigned char) third_party/webrtc/modules/rtp_rtcp/source/ulpfec_receiver_impl.cc:101:26 #2 0x55e01a4a1b6f in webrtc::RtpVideoStreamReceiver::ParseAndHandleEncapsulatingHeader(unsigned char const*, unsigned long, webrtc::RTPHeader const&) third_party/webrtc/video/rtp_video_stream_receiver.cc:414:27 #3 0x55e01a49f05b in webrtc::RtpVideoStreamReceiver::ReceivePacket(unsigned char const*, unsigned long, webrtc::RTPHeader const&) third_party/webrtc/video/rtp_video_stream_receiver.cc:390:5 #4 0x55e01a49fcf2 in webrtc::RtpVideoStreamReceiver::OnRtpPacket(webrtc::RtpPacketReceived const&) third_party/webrtc/video/rtp_video_stream_receiver.cc:290:3 #5 0x55e009a368a1 in webrtc::RtpDemuxer::OnRtpPacket(webrtc::RtpPacketReceived const&) third_party/webrtc/call/rtp_demuxer.cc:157:11 #6 0x55e009a3b6e1 in webrtc::RtpStreamReceiverController::OnRtpPacket(webrtc::RtpPacketReceived const&) third_party/webrtc/call/rtp_stream_receiver_controller.cc:55:19 #7 0x55e01a231339 in webrtc::internal::Call::DeliverRtp(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) third_party/webrtc/call/call.cc:1321:36 #8 0x55e01a232300 in webrtc::internal::Call::DeliverPacket(webrtc::MediaType, rtc::CopyOnWriteBuffer, webrtc::PacketTime const&) third_party/webrtc/call/call.cc:1361:10 #9 0x55e01a95d341 in cricket::WebRtcVideoChannel::OnPacketReceived(rtc::CopyOnWriteBuffer*, rtc::PacketTime const&) third_party/webrtc/media/engine/webrtcvideoengine.cc:1441:26 #10 0x55e01a1d8dc2 in cricket::BaseChannel::ProcessPacket(bool, rtc::CopyOnWriteBuffer const&, rtc::PacketTime const&) third_party/webrtc/pc/channel.cc #11 0x55e01a1f6760 in rtc::AsyncInvoker::OnMessage(rtc::Message*) third_party/webrtc/rtc_base/asyncinvoker.cc:45:22 #12 0x55e01a0a6aa1 in jingle_glue::JingleThreadWrapper::Dispatch(rtc::Message*) jingle/glue/thread_wrapper.cc:157:22 #13 0x55e01a0a7d7e in jingle_glue::JingleThreadWrapper::RunTask(int) jingle/glue/thread_wrapper.cc:279:7 #14 0x55e00d52b6f5 in Run base/callback.h:96:12 #15 0x55e00d52b6f5 in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) base/debug/task_annotator.cc:101 #16 0x55e00d5881d5 in base::MessageLoop::RunTask(base::PendingTask*) base/message_loop/message_loop.cc:319:25 #17 0x55e00d589444 in DeferOrRunPendingTask base/message_loop/message_loop.cc:329:5 #18 0x55e00d589444 in base::MessageLoop::DoWork() base/message_loop/message_loop.cc:373 #19 0x55e00d591acf in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) base/message_loop/message_pump_default.cc:37:31 #20 0x55e00d600551 in base::RunLoop::Run() base/run_loop.cc:102:14 #21 0x55e00d6878b4 in base::Thread::ThreadMain() base/threading/thread.cc:337:3 #22 0x55e00d73c694 in base::(anonymous namespace)::ThreadFunc(void*) base/threading/platform_thread_posix.cc:76:13 #23 0x7fa3d586f493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493) Thread T15 (Chrome_libJingl) created by T0 (chrome) here: #0 0x55e00603bb7d in __interceptor_pthread_create /b/build/slave/linux_upload_clang/build/src/third_party/llvm/compiler-rt/lib/asan/asan_interceptors.cc:210:3 #1 0x55e00d73b99e in base::(anonymous namespace)::CreateThread(unsigned long, bool, base::PlatformThread::Delegate*, base::PlatformThreadHandle*, base::ThreadPriority) base/threading/platform_thread_posix.cc:115:13 #2 0x55e00d686be9 in base::Thread::StartWithOptions(base::Thread::Options const&) base/threading/thread.cc:112:15 #3 0x55e00d68684b in base::Thread::Start() base/threading/thread.cc:75:10 #4 0x55e01a09ba37 in content::PeerConnectionDependencyFactory::CreatePeerConnectionFactory() content/renderer/media/webrtc/peer_connection_dependency_factory.cc:177:3 #5 0x55e01a09b4d0 in content::PeerConnectionDependencyFactory::GetPcFactory() content/renderer/media/webrtc/peer_connection_dependency_factory.cc:139:5 #6 0x55e01a09df09 in content::PeerConnectionDependencyFactory::CreatePeerConnection(webrtc::PeerConnectionInterface::RTCConfiguration const&, blink::WebLocalFrame*, webrtc::PeerConnectionObserver*) content/renderer/media/webrtc/peer_connection_dependency_factory.cc:340:8 #7 0x55e01aa63b1b in content::RTCPeerConnectionHandler::Initialize(blink::WebRTCConfiguration const&, blink::WebMediaConstraints const&) content/renderer/media/webrtc/rtc_peer_connection_handler.cc:1333:50 #8 0x55e01baafde2 in blink::RTCPeerConnection::RTCPeerConnection(blink::ExecutionContext*, blink::WebRTCConfiguration const&, blink::WebMediaConstraints, blink::ExceptionState&) third_party/blink/renderer/modules/peerconnection/rtc_peer_connection.cc:585:23 #9 0x55e01baaaedc in blink::RTCPeerConnection::Create(blink::ExecutionContext*, blink::RTCConfiguration const&, blink::Dictionary const&, blink::ExceptionState&) third_party/blink/renderer/modules/peerconnection/rtc_peer_connection.cc:518:44 #10 0x55e01bb1ad0b in constructor gen/third_party/blink/renderer/bindings/modules/v8/v8_rtc_peer_connection.cc:1317:29 #11 0x55e01bb1ad0b in blink::V8RTCPeerConnection::constructorCallback(v8::FunctionCallbackInfo<v8::Value> const&) gen/third_party/blink/renderer/bindings/modules/v8/v8_rtc_peer_connection.cc:1667 #12 0x55e00ab4db49 in v8::internal::FunctionCallbackArguments::Call(v8::internal::CallHandlerInfo*) v8/src/api-arguments-inl.h:94:3 #13 0x55e00ab4a4c4 in v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<true>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments) v8/src/builtins/builtins-api.cc:109:36 #14 0x55e00ab48eb3 in v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) v8/src/builtins/builtins-api.cc:135:5 #15 0x55e00c2fce0d (/usr/local/google/home/natashenka/chromium3/src/out/asan/chrome+0xde74e0d) #16 0x55e00c263d3f (/usr/local/google/home/natashenka/chromium3/src/out/asan/chrome+0xdddbd3f) #17 0x7e9c7b70dd69 (<unknown module>) #18 0x7e9c7b68868f (<unknown module>) #19 0x55e00c2618a5 (/usr/local/google/home/natashenka/chromium3/src/out/asan/chrome+0xddd98a5) #20 0x55e00c263c60 (/usr/local/google/home/natashenka/chromium3/src/out/asan/chrome+0xdddbc60) #21 0x7e9c7b70dd69 (<unknown module>) #22 0x7e9c7b68868f (<unknown module>) #23 0x7e9c7b68868f (<unknown module>) #24 0x7e9c7b68868f (<unknown module>) #25 0x55e00c2618a5 (/usr/local/google/home/natashenka/chromium3/src/out/asan/chrome+0xddd98a5) #26 0x55e00c265722 (/usr/local/google/home/natashenka/chromium3/src/out/asan/chrome+0xdddd722) #27 0x7e9c7b684820 (<unknown module>) #28 0x55e00b3b4130 in Call v8/src/simulator.h:113:12 #29 0x55e00b3b4130 in v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, bool, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*, v8::internal::Handle<v8::internal::Object>, v8::internal::Execution::MessageHandling, v8::internal::Execution::Target) v8/src/execution.cc:155 #30 0x55e00b3b3993 in CallInternal v8/src/execution.cc:191:10 #31 0x55e00b3b3993 in v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*) v8/src/execution.cc:202 #32 0x55e00aa107b4 in v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*) v8/src/api.cc:5218:7 #33 0x55e015fe0a61 in blink::V8ScriptRunner::CallFunction(v8::Local<v8::Function>, blink::ExecutionContext*, v8::Local<v8::Value>, int, v8::Local<v8::Value>*, v8::Isolate*) third_party/blink/renderer/bindings/core/v8/v8_script_runner.cc:386:17 #34 0x55e016028398 in blink::V8EventListener::CallListenerFunction(blink::ScriptState*, v8::Local<v8::Value>, blink::Event*) third_party/blink/renderer/bindings/core/v8/v8_event_listener.cc:115:8 #35 0x55e016029a54 in blink::V8AbstractEventListener::InvokeEventHandler(blink::ScriptState*, blink::Event*, v8::Local<v8::Value>) third_party/blink/renderer/bindings/core/v8/v8_abstract_event_listener.cc:171:20 #36 0x55e01602942b in blink::V8AbstractEventListener::HandleEvent(blink::ScriptState*, blink::Event*) third_party/blink/renderer/bindings/core/v8/v8_abstract_event_listener.cc:120:3 #37 0x55e016029103 in blink::V8AbstractEventListener::handleEvent(blink::ExecutionContext*, blink::Event*) third_party/blink/renderer/bindings/core/v8/v8_abstract_event_listener.cc:108:3 #38 0x55e017446ebe in blink::EventTarget::FireEventListeners(blink::Event*, blink::EventTargetData*, blink::HeapVector<blink::RegisteredEventListener, 1ul>&) third_party/blink/renderer/core/dom/events/event_target.cc:804:15 #39 0x55e017445121 in blink::EventTarget::FireEventListeners(blink::Event*) third_party/blink/renderer/core/dom/events/event_target.cc:656:29 #40 0x55e017444d5b in blink::EventTarget::DispatchEventInternal(blink::Event*) third_party/blink/renderer/core/dom/events/event_target.cc:560:41 #41 0x55e017a0de87 in Create third_party/blink/renderer/core/events/progress_event.h:44:16 #42 0x55e017a0de87 in blink::FileReader::FireEvent(WTF::AtomicString const&) third_party/blink/renderer/core/fileapi/file_reader.cc:471 #43 0x55e017a0e6d4 in blink::FileReader::DidFinishLoading() third_party/blink/renderer/core/fileapi/file_reader.cc:427:3 #44 0x55e00a9494ef in blink::mojom::blink::BlobReaderClientStubDispatch::Accept(blink::mojom::blink::BlobReaderClient*, mojo::Message*) gen/third_party/blink/public/mojom/blob/blob.mojom-blink.cc:168:13 #45 0x55e00ea14f7e in mojo::InterfaceEndpointClient::HandleValidatedMessage(mojo::Message*) mojo/public/cpp/bindings/lib/interface_endpoint_client.cc:419:32 #46 0x55e00ea258b3 in mojo::internal::MultiplexRouter::ProcessIncomingMessage(mojo::internal::MultiplexRouter::MessageWrapper*, mojo::internal::MultiplexRouter::ClientCallBehavior, base::SequencedTaskRunner*) mojo/public/cpp/bindings/lib/multiplex_router.cc:865:42 #47 0x55e00ea2409e in mojo::internal::MultiplexRouter::Accept(mojo::Message*) mojo/public/cpp/bindings/lib/multiplex_router.cc:589:38 #48 0x55e00ea0efa7 in mojo::Connector::ReadSingleMessage(unsigned int*) mojo/public/cpp/bindings/lib/connector.cc:443:51 #49 0x55e00ea1081c in mojo::Connector::ReadAllAvailableMessages() mojo/public/cpp/bindings/lib/connector.cc:472:10 #50 0x55e00ea00642 in Run base/callback.h:125:12 #51 0x55e00ea00642 in mojo::SimpleWatcher::OnHandleReady(int, unsigned int, mojo::HandleSignalsState const&) mojo/public/cpp/system/simple_watcher.cc:274 #52 0x55e00d52b6f5 in Run base/callback.h:96:12 #53 0x55e00d52b6f5 in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) base/debug/task_annotator.cc:101 #54 0x55e00c4afc95 in base::sequence_manager::internal::ThreadControllerImpl::DoWork(base::sequence_manager::internal::ThreadControllerImpl::WorkType) third_party/blink/renderer/platform/scheduler/base/thread_controller_impl.cc:166:21 #55 0x55e00d52b6f5 in Run base/callback.h:96:12 #56 0x55e00d52b6f5 in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) base/debug/task_annotator.cc:101 #57 0x55e00d5881d5 in base::MessageLoop::RunTask(base::PendingTask*) base/message_loop/message_loop.cc:319:25 #58 0x55e00d589444 in DeferOrRunPendingTask base/message_loop/message_loop.cc:329:5 #59 0x55e00d589444 in base::MessageLoop::DoWork() base/message_loop/message_loop.cc:373 #60 0x55e00d591acf in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) base/message_loop/message_pump_default.cc:37:31 #61 0x55e00d600551 in base::RunLoop::Run() base/run_loop.cc:102:14 #62 0x55e01bfb0599 in content::RendererMain(content::MainFunctionParams const&) content/renderer/renderer_main.cc:218:23 #63 0x55e00cafbca5 in content::RunZygote(content::ContentMainDelegate*) content/app/content_main_runner_impl.cc:567:14 #64 0x55e00caff751 in content::ContentMainRunnerImpl::Run() content/app/content_main_runner_impl.cc:969:10 #65 0x55e00cb1e6c3 in service_manager::Main(service_manager::MainParams const&) services/service_manager/embedder/main.cc:459:29 #66 0x55e00cafa2d0 in content::ContentMain(content::ContentMainParams const&) content/app/content_main.cc:19:10 #67 0x55e006081fe3 in ChromeMain chrome/app/chrome_main.cc:101:12 #68 0x7fa3ceac32b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0) SUMMARY: AddressSanitizer: heap-buffer-overflow third_party/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc:615:34 in XorPayloads Shadow bytes around the buggy address: 0x0c3680767f90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c3680767fa0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c3680767fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c3680767fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c3680767fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c3680767fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00[fa]fa 0x0c3680767ff0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c3680768000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c3680768010: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c3680768020: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c3680768030: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==109993==ABORTING To reproduce this issue: 1) Apply new.patch to a fresh WebRTC tree 2) Build video_replay 3) Download the attached files and run ./video_replay --input_file fec Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/45444.zip

Products Mentioned

Configuraton 0

Google>>Chrome >> Version To (excluding) 69.0.3497.81

Configuraton 0

Redhat>>Enterprise_linux_desktop >> Version 6.0

Redhat>>Enterprise_linux_server >> Version 6.0

Redhat>>Enterprise_linux_workstation >> Version 6.0

References

http://www.securityfocus.com/bid/105215
Tags : vdb-entry, x_refsource_BID
https://www.exploit-db.com/exploits/45444/
Tags : exploit, x_refsource_EXPLOIT-DB
https://access.redhat.com/errata/RHSA-2018:2666
Tags : vendor-advisory, x_refsource_REDHAT
https://security.gentoo.org/glsa/201811-10
Tags : vendor-advisory, x_refsource_GENTOO
https://crbug.com/856823
Tags : x_refsource_MISC