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Issue 791298 link

Starred by 1 user

Issue metadata

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



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Heap-use-after-free in ui::AXSystemCaretWin::~AXSystemCaretWin

Project Member Reported by ClusterFuzz, Dec 2 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6684302078377984

Fuzzer: ifratric_pdf_generic
Job Type: windows_syzyasan_chrome
Platform Id: windows

Crash Type: Heap-use-after-free READ 4
Crash Address: 0x3271bc2f
Crash State:
  ui::AXSystemCaretWin::~AXSystemCaretWin
  content::LegacyRenderWidgetHostHWND::~LegacyRenderWidgetHostHWND
  content::LegacyRenderWidgetHostHWND::OnFinalMessage
  
Memory Tool: SYZYASAN

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=521102:521174

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6684302078377984

Additional requirements: Requires Gestures

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Dec 2 2017

Labels: M-64 ClusterFuzz-Top-Crash ReleaseBlock-Beta
Testcase 6684302078377984 is a top crash on ClusterFuzz for windows platform. Please prioritize fixing this crash.

Marking this crash as a Beta release blocker.

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

Comment 2 by ClusterFuzz, Dec 2 2017

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

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 3 by ClusterFuzz, Dec 2 2017

Labels: Test-Predator-Auto-Owner
Owner: nek...@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/ca6969eeeb517401b6483960a244777c77634682 (Enables AccessibleObjectFromEvent to retrieve the system caret).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.
Project Member

Comment 4 by sheriffbot@chromium.org, Dec 3 2017

Labels: Pri-1
Project Member

Comment 5 by ClusterFuzz, Dec 6 2017

ClusterFuzz has detected this issue as fixed in range 521421:521451.

Detailed report: https://clusterfuzz.com/testcase?key=6684302078377984

Fuzzer: ifratric_pdf_generic
Job Type: windows_asan_chrome
Platform Id: windows

Crash Type: Heap-use-after-free READ 4
Crash Address: 0x3271bc2f
Crash State:
  ui::AXSystemCaretWin::~AXSystemCaretWin
  content::LegacyRenderWidgetHostHWND::~LegacyRenderWidgetHostHWND
  content::LegacyRenderWidgetHostHWND::OnFinalMessage
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=521102:521174
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=521421:521451

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6684302078377984

Additional requirements: Requires Gestures

See https://github.com/google/clusterfuzz-tools 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, Dec 6 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6684302078377984 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, Dec 6 2017

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

Comment 8 by sheriffbot@chromium.org, Mar 14 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
Project Member

Comment 9 by sheriffbot@chromium.org, Mar 27 2018

Labels: -Security_Impact-Head -M-64 M-65 Security_Impact-Stable
Labels: -ReleaseBlock-Beta

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