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Issue metadata

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



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Use-of-uninitialized-value in CFX_ScanlineCompositor::CompositeRgbBitmapLine

Project Member Reported by ClusterFuzz, Mar 29 2017

Issue description

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Comment 1 by sheriffbot@chromium.org, Mar 29 2017

Labels: M-59
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Comment 2 by sheriffbot@chromium.org, Mar 29 2017

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

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Comment 3 by sheriffbot@chromium.org, Mar 29 2017

Labels: Pri-1

Comment 4 by ta...@google.com, Mar 30 2017

Components: Internals>Plugins>PDF
Owner: tsepez@chromium.org
Status: Assigned (was: Untriaged)
This looks similar to this one: 706264
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Comment 5 by sheriffbot@chromium.org, Mar 30 2017

Labels: M-59

Comment 6 by tsepez@chromium.org, Mar 30 2017

Cc: dsinclair@chromium.org
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Comment 7 by ClusterFuzz, Mar 31 2017

ClusterFuzz has detected this issue as fixed in range 460866:460935.

Detailed report: https://clusterfuzz.com/testcase?key=6214133214347264

Fuzzer: ifratric_pdf_generic
Job Type: linux_msan_pdfium
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  CFX_ScanlineCompositor::CompositeRgbBitmapLine
  CFX_BitmapComposer::ComposeScanline
  CStretchEngine::StretchVert
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_pdfium&range=460163:460191
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_pdfium&range=460866:460935

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv94WQVrpI-nAe5b-JXPD5bnF-MFJuarPqIdtLLE99H8nGkBI54FOWR8uRyZzNQkYEBmOtO9VtXZutFS3mz1JxAy_lDihArpoaQUTs62bfu3Qzl6nYiBQY5W-LhnkWiNbdRGMEcxJkbQ2Mkn7o4_K-Z5CTJ0VyGEZIqs5PrNcMouoyOaiQ2eFSsHuMGYvM2y97NpOO3TzndDSkYirkGh_DKkY8lrFQcPthTSIlN7AuXXkaZl4mncz2KFZXsyV_Xj8ojVKu_K8P7Le1X10abwYPUCoOg0rOmkXWLAdAHLMQD0Fr4BzQ8ujw6oCOE7trHq3ruM4ekeqCbchpM20-yy9_c_y7V-o9MUTvzlwc1bLQDBoNLwZi6LYe7NDoo48ZWoxEiOwp9lcCek8kzRj-wPABOZHflGMpQ?testcase_id=6214133214347264


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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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Comment 8 by ClusterFuzz, Mar 31 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6214133214347264 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
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Comment 9 by sheriffbot@chromium.org, Mar 31 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Labels: -ReleaseBlock-Beta
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Comment 11 by sheriffbot@chromium.org, Jul 7 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

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