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Starred by 2 users

Issue metadata

Status: Duplicate
Owner:
Closed: Nov 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug



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Heap-buffer-overflow in v8::internal::wasm::ModuleDecoder::DecodeFunctionBody

Project Member Reported by ClusterFuzz, Sep 20 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4684758167846912

Fuzzer: inferno_js_fuzzer
Job Type: windows_asan_d8
Platform Id: windows

Crash Type: Heap-buffer-overflow WRITE 8
Crash Address: 0x0b003794
Crash State:
  v8::internal::wasm::ModuleDecoder::DecodeFunctionBody
  v8::internal::wasm::AsyncStreamingProcessor::ProcessFunctionBody
  v8::internal::wasm::StreamingDecoder::DecodeFunctionBody::Next
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_d8&range=502452:502478

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4684758167846912

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Cc: clemensh@chromium.org
Components: -Blink>JavaScript Blink>JavaScript>WebAssembly
Owner: ahaas@chromium.org
Status: Assigned (was: Untriaged)
Project Member

Comment 2 by sheriffbot@chromium.org, Sep 20 2017

Labels: M-63
Project Member

Comment 3 by sheriffbot@chromium.org, Sep 20 2017

Labels: ReleaseBlock-Stable
This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 4 by sheriffbot@chromium.org, Sep 20 2017

Labels: Pri-1

Comment 5 by ahaas@chromium.org, Sep 20 2017

Labels: -ReleaseBlock-Stable
This crash only happens behind a testing flag which is currently off by default. This is not a release blocker.

Comment 6 by ahaas@chromium.org, Sep 20 2017

Labels: -Type-Bug-Security -Pri-1 -Restrict-View-SecurityTeam -Security_Impact-Head -Security_Severity-High Pri-2 Type-Bug
Project Member

Comment 7 by ClusterFuzz, Oct 1 2017

Labels: Test-Predator-AutoComponents
Automatically applying components based on information from OWNERS files. If this seems incorrect, please apply the Test-Predator-Wrong-Components label.
Labels: -Test-Predator-AutoComponents

Comment 9 by ahaas@chromium.org, Nov 20 2017

Mergedinto: 781507
Status: Duplicate (was: Assigned)
Project Member

Comment 10 by ClusterFuzz, Nov 22 2017

ClusterFuzz has detected this issue as fixed in range 49522:49523.

Detailed report: https://clusterfuzz.com/testcase?key=4684758167846912

Fuzzer: inferno_js_fuzzer
Job Type: windows_asan_d8
Platform Id: windows

Crash Type: Heap-buffer-overflow WRITE 8
Crash Address: 0x0a9024d4
Crash State:
  v8::internal::wasm::ModuleDecoder::DecodeFunctionBody
  v8::internal::wasm::AsyncStreamingProcessor::ProcessFunctionBody
  v8::internal::wasm::StreamingDecoder::DecodeFunctionBody::Next
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Fixed: https://clusterfuzz.com/revisions?job=windows_asan_d8&range=49522:49523

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4684758167846912

See https://github.com/google/clusterfuzz-tools for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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