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Issue metadata

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



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Heap-buffer-overflow in SkiaState::ClipRestore

Project Member Reported by ClusterFuzz, Mar 24 2017

Issue description

Project Member

Comment 1 by ClusterFuzz, Mar 24 2017

ClusterFuzz has detected this issue as fixed in range 459132:459191.

Detailed report: https://clusterfuzz.com/testcase?key=4682468688134144

Fuzzer: libfuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x604000051d5c
Crash State:
  SkiaState::ClipRestore
  CFX_SkiaDeviceDriver::RestoreState
  CFX_RenderDevice::RestoreState
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=458783:458809
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=459132:459191

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv94G9j3xujTl0rtpBKbh0eRYEDub1afRHa3RLa4e6tI_wW5gfIoEmtvDoZO-7xVWoPSXYfxOGM5qtahee9aIMNidmIEj3IedgPxunMPwwKExGEJCpC7LkkxttOVQ6L8PY3y1EMfAn5ESokYNqElUI3CyDQEPGiaDesc85tabbxtpFg0DagkqLofFSFLeqcbs_P7tZLJ49BzX2LjAT4Jl6vKDtSSzDawOSRoz6-1blmn_QJewsEjIBgHKbKNtIUnDBaeBdBldAfe4UhiwnngUBjl7_2PT_soSuUFeUFKI2sfZSSnrs44t4lwXM7EA790cc5IBFl-pDn4BSVrozFvLGOh02vcBKBzpQecS-_YB9dJm_z_6S9N7hbZ7fgK_0UBackjawI8_x_ir_kUhJ0pLKV3WM-SVbw?testcase_id=4682468688134144


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, Mar 24 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 4682468688134144 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, Mar 24 2017

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

Comment 4 by sheriffbot@chromium.org, Jun 30 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

Comment 5 by ta...@google.com, Jul 24 2017

Components: Internals>Skia
Project Member

Comment 6 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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