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Issue metadata

Status: Verified
Owner: ----
Closed: Jul 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 3
Type: Bug



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JustifyFull command crashes with CSS property flex-flow

Project Member Reported by ClusterFuzz, Jun 15 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6511963768356864

Fuzzer: ifratric-browserfuzzer-v3
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: UNKNOWN READ
Crash Address: 0x155ef880
Crash State:
  blink::CreateMarkupAlgorithm<class blink::EditingAlgorithm<class blink::NodeTrav
  blink::CreateMarkup
  blink::CompositeEditCommand::MoveParagraphs
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=464127:464479

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6511963768356864


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Project Member

Comment 1 by sheriffbot@chromium.org, Jun 15 2017

Labels: M-61
Project Member

Comment 2 by sheriffbot@chromium.org, Jun 15 2017

Labels: ReleaseBlock-Stable
This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 3 by sheriffbot@chromium.org, Jun 15 2017

Labels: Pri-1

Comment 4 by est...@chromium.org, Jun 16 2017

Components: Blink>Editing
Labels: -Restrict-View-SecurityTeam -Security_Severity-Medium -Security_Impact-Head -ReleaseBlock-Stable Security_Impact-None
Marking Security_Impact-None because it's a CHECK failure.
Labels: -Type-Bug-Security -Security_Impact-None Type-Bug
CHECK failure is not a security bug, we fixed the parsing logic on clusterfuzz side, sorry for noise.

Comment 6 by yosin@chromium.org, Jun 20 2017

Labels: -Pri-1 Pri-3
Summary: JustifyFull command crashes with CSS property flex-flow (was: Crash in blink::CreateMarkupAlgorithm<class blink::EditingAlgorithm<class blink::NodeTrav)
Lower to Pri-3, because real world usage of JustifyFull command is low.

Comment 7 by yosin@chromium.org, Jun 20 2017

Status: Available (was: Untriaged)
Project Member

Comment 8 by ClusterFuzz, Jul 25 2017

ClusterFuzz has detected this issue as fixed in range 489161:489186.

Detailed report: https://clusterfuzz.com/testcase?key=6511963768356864

Fuzzer: ifratric-browserfuzzer-v3
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: CHECK failure
Crash Address: 
Crash State:
  start_position.CompareTo(end_position) <= 0 in Serialization.cpp
  blink::CreateMarkupAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal>
  blink::CreateMarkup
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=464127:464479
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome_no_sandbox&range=489161:489186

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6511963768356864


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 9 by ClusterFuzz, Jul 25 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 6511963768356864 is verified as fixed, so closing issue as verified.

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

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