TIFF decoder is XFA which is not enabled in any version of Chrome.

dsinclair: Uh oh! This issue still open and hasn't been updated in the last 14 days. This is a serious vulnerability, and we want to ensure that there's progress. Could you please leave an update with the current status and any potential blockers?

If you're not the right owner for this issue, could you please remove yourself as soon as possible or help us find the right one?

If the issue is fixed or you can't reproduce it, please close the bug. If you've started working on a fix, please set the status to Started.

Thanks for your time! To disable nags, add the Disable-Nags label.

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

ClusterFuzz has detected this issue as fixed in range 427848:428120.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4528622608318464

Fuzzer: libfuzzer_radamsa_pdf_codec_tiff_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow WRITE 1
Crash Address: 0x60d0000001a0
Crash State:
  FPDFAPI_inflate_fast
  FPDFAPI_inflate
  PixarLogDecode
  
Recommended Security Severity: High

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=400757:400887
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=427848:428120

Minimized Testcase (1.69 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95c0c2Oj9JJXFGSmIsh6ULJUdo_zCoLL1Jzli8DLjg4GwDFZyXVFM7uVcPc9A8lyT1U59An0Pk_xkkOXYi3hjsIXvHqJfE848csLgbYc9xmv1H9s9AioUZggldxa-cSOlDlMHITwwvQreqT_E-vYxNVOc9Dtg?testcase_id=4528622608318464

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.

ClusterFuzz testcase is verified as fixed, closing issue.

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

Your change meets the bar and is auto-approved for M55 (branch: 2883)

This is an XFA bug which is not enabled in any branch of Chrome. There is nothing to merge.

**** Bulk edit -  please ignore if not applicable ****

Please merge your change to M55 branch 2883 today before 5:00 PM PT or latest by tomorrow, Tuesday (11/01/16) 4:00 PM PT so we can take it for this week Beta release. 

Removing "Merge-Approved-55" label based on comment #11.

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