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Issue 705736 link

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Issue metadata

Status: Verified
Owner:
Last visit > 30 days ago
Closed: Mar 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security

Blocking:
issue pdfium:11



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Use-of-uninitialized-value in SkPath::isRectContour

Project Member Reported by ClusterFuzz, Mar 27 2017

Issue description

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Comment 1 by sheriffbot@chromium.org, Mar 28 2017

Labels: M-59
Project Member

Comment 2 by sheriffbot@chromium.org, Mar 28 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
Project Member

Comment 3 by sheriffbot@chromium.org, Mar 28 2017

Labels: Pri-1

Comment 4 by ta...@google.com, Mar 29 2017

Components: Internals>Skia>PDF
Owner: tsepez@chromium.org
Status: Assigned (was: Untriaged)
tsepez@, I wonder could you take a look at this crash? Thank you!

Comment 5 by ta...@google.com, Mar 29 2017

Cc: caryclark@chromium.org
This seems related to #705783 and #705738 (assigned to caryclark@)
Project Member

Comment 6 by ClusterFuzz, Mar 29 2017

ClusterFuzz has detected this issue as fixed in range 460139:460163.

Detailed report: https://clusterfuzz.com/testcase?key=5714929433968640

Fuzzer: ifratric_pdf_generic
Job Type: linux_msan_pdfium
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  SkPath::isRectContour
  SkPath::isRect
  SkCanvas::clipPath
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_pdfium&range=458746:458879
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_pdfium&range=460139:460163

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv94Ob3HEFDIOTxi2Iy01TkGv78Yu8Mjoj8828Je98sy9nfLxUvXeNVupm8YbMLJRb6m_GclD6XaRoOPaX0ooGNEqipCXeF8nKld9p-a2s2JI_b5zaBZEcQhwlDuV1x_Y1zN2eo6ssHETRGfwrQUxh5CMf1QgOw9ZrSQN9WrqvloVyXTEMwl1Miqsodd0rgnksVE9bGi0JESyqRW4WplDvW8FvOdCo9WD_QdM2N95ANNEGDJPJUhkIGhh7Xr5yVHEpBRNIECWg-nl-IiXwpF3WL5n7ZWNgXP6gjgthgSHPctdo6LSNcQVoVhOuD-ILiI0uWX3Hg8CEN4IBjTXAbc3tT-mQQqL-mmvm91iZa43CChmsDxqlmeV0AIXMbpTJ472JwWgw3_XZSR5js3QKWzDFaTBi4mIVQ?testcase_id=5714929433968640


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 7 by ClusterFuzz, Mar 29 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5714929433968640 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Blocking: pdfium:11
Cc: -caryclark@chromium.org tsepez@chromium.org dsinclair@chromium.org
Owner: caryclark@google.com
Project Member

Comment 9 by sheriffbot@chromium.org, Mar 29 2017

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

Comment 11 by sheriffbot@chromium.org, Jul 5 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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