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Issue metadata

Status: Verified
Owner: ----
Closed: Apr 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Heap-buffer-overflow in std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<ch

Project Member Reported by ClusterFuzz, Apr 6 2017

Issue description

Components: Blink>JavaScript
Project Member

Comment 2 by ClusterFuzz, Apr 6 2017

ClusterFuzz has detected this issue as fixed in range 462224:462273.

Detailed report: https://clusterfuzz.com/testcase?key=6684504191401984

Fuzzer: libfuzzer_v8_wasm_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1
Crash Address: 0x6060000008f7
Crash State:
  std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<ch
  CheckLEImpl<const
  traceByteRange
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=462171:462224
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=462224:462273

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv97759xr5TWwlCzb-Zc8naf20hUtLjpmydfBoarVgLMaHBiC2ekFUGKhorq6dF-yHlk_dANF5ENfT7XErjocfkZBrKGpst4SuZHHl9OKMoZCY9XCslUXE0fKLGDi19i_sj9b_Uyp2iB6dFz-nOJE94uZrREmomqlWXzh1drCP1k6T1-kdoovzBjd_P_jJJeNAkUCtNCKJXo5pS1j4W15C8n8E3Att6wjrmvK8Y1iUgxcb8yVcCdN_IqXHqFbw6iS-5ASn5AoeYe1i7sf8plyRxBh5U8y8iFa7MGFoMpz52E-OjIZLmcL7yRiA0YGvVyTtDcnin-WDBKeqCPXGCCOE44KvUx0F3agw1CkUxLqQIrMMBFDocAk1LiG1IT-NZPknkZfI4997hQKqtXWDULCvGjmDxHyCw?testcase_id=6684504191401984


See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.

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

Comment 3 by ClusterFuzz, Apr 6 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6684504191401984 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Project Member

Comment 4 by sheriffbot@chromium.org, Apr 6 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Project Member

Comment 5 by sheriffbot@chromium.org, Jul 13 2017

Labels: -Restrict-View-SecurityNotify allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

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

Comment 6 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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