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Issue metadata

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



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Heap-use-after-free in CFX_UnownedPtr<CXFA_PDFFontMgr>::~CFX_UnownedPtr

Project Member Reported by ClusterFuzz, May 21 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5211087682404352

Fuzzer: libfuzzer_pdfium_xfa_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-use-after-free READ 1
Crash Address: 0x6060000043a0
Crash State:
  CFX_UnownedPtr<CXFA_PDFFontMgr>::~CFX_UnownedPtr
  CFGAS_GEFont::~CFGAS_GEFont
  CFGAS_GEFont::~CFGAS_GEFont
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=472349:472390

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5211087682404352


Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Components: Internals>Plugins>PDF
Project Member

Comment 2 by ClusterFuzz, May 22 2017

ClusterFuzz has detected this issue as fixed in range 473405:473419.

Detailed report: https://clusterfuzz.com/testcase?key=5211087682404352

Fuzzer: libfuzzer_pdfium_xfa_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-use-after-free READ 1
Crash Address: 0x6060000043a0
Crash State:
  CFX_UnownedPtr<CXFA_PDFFontMgr>::~CFX_UnownedPtr
  CFGAS_GEFont::~CFGAS_GEFont
  CFGAS_GEFont::~CFGAS_GEFont
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=472349:472390
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=473405:473419

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5211087682404352


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 3 by sheriffbot@chromium.org, May 22 2017

Labels: M-60
Project Member

Comment 4 by sheriffbot@chromium.org, May 22 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 5 by sheriffbot@chromium.org, May 22 2017

Labels: Pri-1
Project Member

Comment 6 by ClusterFuzz, May 22 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 5211087682404352 is verified as fixed, so closing issue.

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

Comment 7 by sheriffbot@chromium.org, May 23 2017

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

Comment 9 by sheriffbot@chromium.org, Aug 29 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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