New issue
Advanced search Search tips

Issue 726833 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: May 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Security



Sign in to add a comment

Heap-use-after-free in CFX_UnownedPtr<CJBig2_ArithDecoder>::Probe

Project Member Reported by ClusterFuzz, May 26 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4993251152232448

Fuzzer: libfuzzer_pdf_codec_jbig2_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Heap-use-after-free READ 1
Crash Address: 0x604000000a60
Crash State:
  CFX_UnownedPtr<CJBig2_ArithDecoder>::Probe
  CFX_UnownedPtr<CJBig2_ArithDecoder>::~CFX_UnownedPtr
  CJBig2_GRDProc::~CJBig2_GRDProc
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=474949:474979

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4993251152232448


Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 

Comment 1 by kenrb@chromium.org, May 26 2017

Cc: dsinclair@chromium.org
Components: Internals>Plugins>PDF
Labels: -Security_Severity-High Security_Severity-Low Pri-2
Owner: tsepez@chromium.org
Status: Assigned (was: Untriaged)
Likely a dupe; to tsepez@ for triage.
Project Member

Comment 2 by ClusterFuzz, May 27 2017

ClusterFuzz has detected this issue as fixed in range 475141:475194.

Detailed report: https://clusterfuzz.com/testcase?key=4993251152232448

Fuzzer: libfuzzer_pdf_codec_jbig2_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Heap-use-after-free READ 1
Crash Address: 0x604000000a60
Crash State:
  CFX_UnownedPtr<CJBig2_ArithDecoder>::Probe
  CFX_UnownedPtr<CJBig2_ArithDecoder>::~CFX_UnownedPtr
  CJBig2_GRDProc::~CJBig2_GRDProc
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=474949:474979
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=475141:475194

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4993251152232448


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 ClusterFuzz, May 27 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4993251152232448 is verified as fixed, so closing issue.

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

Comment 4 by sheriffbot@chromium.org, May 27 2017

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

Comment 5 by sheriffbot@chromium.org, Sep 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

Sign in to add a comment