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Issue metadata

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



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Use-of-uninitialized-value in EvalSegmentedFn

Project Member Reported by ClusterFuzz, Jan 4 2017

Issue description

Components: Internals>Plugins>PDF
Labels: Pri-1
Owner: jam@chromium.org
Project Member

Comment 2 by sheriffbot@chromium.org, Jan 4 2017

Labels: M-56
Project Member

Comment 3 by sheriffbot@chromium.org, Jan 4 2017

Status: Assigned (was: Untriaged)
Cc: jam@chromium.org
Owner: kcwu@chromium.org
kcwu@ another ICC fuzzer finding.
Project Member

Comment 5 by sheriffbot@chromium.org, Jan 18 2017

kcwu: 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
Project Member

Comment 6 by sheriffbot@chromium.org, Feb 1 2017

kcwu: Uh oh! This issue still open and hasn't been updated in the last 28 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

Comment 7 by kcwu@chromium.org, Feb 22 2017

Cc: kcwu@chromium.org
Owner: dsinclair@chromium.org
I don't have free time to help. Reassigned.
Project Member

Comment 8 by ClusterFuzz, Feb 23 2017

ClusterFuzz has detected this issue as fixed in range 452161:452203.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6423239279771648

Fuzzer: libfuzzer_pdf_codec_icc_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  EvalSegmentedFn
  cmsEvalToneCurveFloat
  EvaluateCurves
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=420535:420584
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=452161:452203

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv95fneiB_fbqRqLhUUBtghaHeMf1MEGi-v430hlDtR5joENELWohQDcPBWSuF2Br1f04u8nZ4BnsUhzZRP_TOIpPSyToaXCzSReXdnc1pqnRLsxWnyIcKeMQRT9ktO2ZtlOdFl4DXQcPjjXHu6esL75b1NIQ3qQp5gEYgbQjaYoctrURkMrVa4qzX-IDsPrTSv3nRzB1BSL-COAEFWWM_vtGXFQLPPhSuIByBLUA7LkrazjFuuoY8_CNDkMhtLH0LMXgtozZ6mIlyPBVdk1na_eU9VCwywwJzEjWab0qyyEg8b6pkai8XhvQBcWBIOuD7nQnvAc64cBbbLu-yskQHMDshNnJcha7-xgoYJsMmK7Ug-KLEWc?testcase_id=6423239279771648


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 9 by ClusterFuzz, Feb 23 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6423239279771648 is verified as fixed, so closing issue.

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

Comment 10 by sheriffbot@chromium.org, Feb 24 2017

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

Comment 11 by sheriffbot@chromium.org, Jun 2 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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