Prevent fuzzers from using disallowed runtime functions through `eval('%FooBar()')` |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=6716331964760064 Fuzzer: ochang_js_fuzzer Job Type: linux_cfi_d8 Platform Id: linux Crash Type: Ill Crash Address: 0x7f159ab40612 Crash State: NULL Sanitizer: cfi (CFI) Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_d8&range=48565:48566 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6716331964760064 Issue filed automatically. See https://github.com/google/clusterfuzz-tools for more information.
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Nov 17 2017
Yeah, I have seen the fuzzer finding the eval("%FooBar()") pattern before and hence side-stepping the fuzzer white-list of allowed runtime functions. This has happened even before assertPromiseResult a couple of times. But wasn't annoying enough yet for anyone to take action. :/
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Nov 17 2017
I have it on my list, I will do it latest at the next Cleanup Friday.
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Nov 17 2017
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May 17 2018
ClusterFuzz has detected this issue as fixed in range 53203:53204. Detailed report: https://clusterfuzz.com/testcase?key=6716331964760064 Fuzzer: ochang_js_fuzzer Job Type: linux_cfi_d8 Platform Id: linux Crash Type: Ill Crash Address: 0x55c945585a42 Crash State: NULL Sanitizer: cfi (CFI) Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_d8&range=48565:48566 Fixed: https://clusterfuzz.com/revisions?job=linux_cfi_d8&range=53203:53204 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6716331964760064 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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May 17 2018
ClusterFuzz testcase 6716331964760064 is verified as fixed, so closing issue as verified. If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue. |
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Comment 1 by clemensh@chromium.org
, Nov 17 2017Status: Available (was: Untriaged)