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Issue 772151 link

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Issue metadata

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



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Heap-use-after-free in fxcrt::UnownedPtr<CPDF_Array const>::ProbeForLowSeverityLifetimeIssue

Project Member Reported by ClusterFuzz, Oct 5 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4613114137149440

Fuzzer: libFuzzer_pdfium_xfa_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-use-after-free READ 1
Crash Address: 0x605000002c30
Crash State:
  fxcrt::UnownedPtr<CPDF_Array const>::ProbeForLowSeverityLifetimeIssue
  CPDF_SecurityHandler::~CPDF_SecurityHandler
  CPDF_Parser::ReleaseEncryptHandler
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=506125:506169

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4613114137149440

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 5 2017

Components: Internals>Plugins>PDF
Labels: Test-Predator-AutoComponents
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Labels: -Security_Severity-High Security_Severity-Low Pri-2
Probably duplicate of  bug 771479 . Shall we just let CF figure it out for itself?
Owner: dsinclair@chromium.org
Status: Assigned (was: Untriaged)
The referenced issue still reproduces on HEAD
Owner: hnakashima@chromium.org
Project Member

Comment 5 by ClusterFuzz, Oct 11 2017

ClusterFuzz has detected this issue as fixed in range 507766:507811.

Detailed report: https://clusterfuzz.com/testcase?key=4613114137149440

Fuzzer: libFuzzer_pdfium_xfa_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-use-after-free READ 1
Crash Address: 0x605000002c30
Crash State:
  fxcrt::UnownedPtr<CPDF_Array const>::ProbeForLowSeverityLifetimeIssue
  CPDF_SecurityHandler::~CPDF_SecurityHandler
  CPDF_Parser::ReleaseEncryptHandler
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=506125:506169
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=507766:507811

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4613114137149440

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 6 by ClusterFuzz, Oct 11 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4613114137149440 is verified as fixed, so closing issue as verified.

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

Comment 7 by sheriffbot@chromium.org, Oct 11 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Labels: -Test-Predator-AutoComponents Test-Predator-Auto-Components
Project Member

Comment 9 by sheriffbot@chromium.org, Jan 17 2018

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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