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Issue metadata

Status: Duplicate
Merged: issue 711895
Owner: ----
Closed: Apr 2017
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: ----
Type: Bug-Security



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Heap-buffer-overflow in read_big_endian_u32

Project Member Reported by ClusterFuzz, Apr 13 2017

Issue description

Project Member

Comment 1 by ClusterFuzz, Apr 13 2017

ClusterFuzz has detected this issue as fixed in range 464117:464160.

Detailed report: https://clusterfuzz.com/testcase?key=6035109028560896

Fuzzer: libfuzzer_skia_color_space_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1
Crash Address: 0x61c000001764
Crash State:
  read_big_endian_u32
  load_a2b0
  make_a2b
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=464056:464117
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=464117:464160

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv96DvNETTfPBWlQGKcDwHDEo8yaLinzV2PbOp7J3-viBiYpb_fv2If-iUhIl-FC36kITlcg1xDv4nBXRhZV76Ii6dGKGFbTtT4hFDKYqQbAcn9JvohJoCnu7-WNuHt37xwk4uecgSk9lL98Orn46wUtSbhA7eYyFzpi6fb9aoByWzahDSrPYHL_RWCyn1Fzm0Zr9QGWUozBfwCtMZHbZe4Uf7wTjvbKwUM7yjONDsrfRGgY5ONASNRfgOeC_lC6LRgSNubOcTwCFRIGzd6eMLxQVq3p1ZR-yz4-wak8SL5ZHpGyz_1sm6Gy40M2h13GGKjt8uOlbpvRJncjVGjwOKCmZcyo37jfslc-xaM95LaufNaXfMgc?testcase_id=6035109028560896


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 2 by ClusterFuzz, Apr 13 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6035109028560896 is verified as fixed, so closing issue.

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

Comment 3 by sheriffbot@chromium.org, Apr 13 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify

Comment 4 by noel@chromium.org, Apr 18 2017

Labels: ClusterFuzz-Wrong
Status: Available (was: Verified)
Reproduces locally for me in the fuzzer, not sure why CLusterFuzz marked as fixed.

Comment 5 by noel@chromium.org, Apr 18 2017

Mergedinto: 711895
Status: Duplicate (was: Available)
Project Member

Comment 6 by sheriffbot@chromium.org, Jul 26 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
Labels: -ClusterFuzz-Wrong
We have made a bunch of changes on ClusterFuzz side, so resetting ClusterFuzz-Wrong label.

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