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Issue metadata

Status: Duplicate
Owner:
Closed: Mar 2017
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Use-of-uninitialized-value in content::protocol::FundamentalValue::writeJSON

Project Member Reported by ClusterFuzz, Mar 28 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5794338950086656

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  content::protocol::FundamentalValue::writeJSON
  content::protocol::DictionaryValue::writeJSON
  content::protocol::DictionaryValue::writeJSON
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=459881:459919

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv9575sTXCkAM6lnlmx3Pegsfl5WPXarja1eiaigzjAylNnp_5dqxJKCNZNmmEWxyqtwmV87NVMj-NjkPi9WGX5XMEJqwyul31Cg38Hmol3Ci03bcnkNe3IOuc0-VJmw2PfG8Z1dP1YHPGCIRPh0-P9WRfOoUc5HGYa5u45M61GCjN6xR_HV2nGvGgTitmvi7zeM24aCcLXrwyByyzHEHa9WZlZycR0pYhCFERywbQ2Xoh8O5iTU2-JniVb13OCYJrTuV9zGYVc2AI0JyQ9DpDGRhzo7psB2iaJyaU_wIr2-8wTE6gfvv_PR_q2uyAykbyPAyIdTgsWbq-_LWcjB020w97ZJiZ32-i585sBjFvl6TbgZLzP8WL6wJU58L_Qhp9kMOVuRi7apuClYfxh8ffy_EFR_meQ?testcase_id=5794338950086656


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, Mar 28 2017

Labels: M-59
Project Member

Comment 2 by sheriffbot@chromium.org, Mar 28 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 3 by sheriffbot@chromium.org, Mar 28 2017

Labels: Pri-1

Comment 4 by ta...@google.com, Mar 29 2017

Components: Content>Core
Owner: elawrence@chromium.org
Status: Assigned (was: Untriaged)
Mergedinto: 706080
Status: Duplicate (was: Assigned)
Project Member

Comment 6 by ClusterFuzz, Mar 29 2017

ClusterFuzz has detected this issue as fixed in range 460241:460256.

Detailed report: https://clusterfuzz.com/testcase?key=5794338950086656

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  content::protocol::FundamentalValue::writeJSON
  content::protocol::DictionaryValue::writeJSON
  content::protocol::DictionaryValue::writeJSON
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=459881:459919
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=460241:460256

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv9575sTXCkAM6lnlmx3Pegsfl5WPXarja1eiaigzjAylNnp_5dqxJKCNZNmmEWxyqtwmV87NVMj-NjkPi9WGX5XMEJqwyul31Cg38Hmol3Ci03bcnkNe3IOuc0-VJmw2PfG8Z1dP1YHPGCIRPh0-P9WRfOoUc5HGYa5u45M61GCjN6xR_HV2nGvGgTitmvi7zeM24aCcLXrwyByyzHEHa9WZlZycR0pYhCFERywbQ2Xoh8O5iTU2-JniVb13OCYJrTuV9zGYVc2AI0JyQ9DpDGRhzo7psB2iaJyaU_wIr2-8wTE6gfvv_PR_q2uyAykbyPAyIdTgsWbq-_LWcjB020w97ZJiZ32-i585sBjFvl6TbgZLzP8WL6wJU58L_Qhp9kMOVuRi7apuClYfxh8ffy_EFR_meQ?testcase_id=5794338950086656


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 7 by sheriffbot@chromium.org, Jul 5 2017

Labels: -Restrict-View-SecurityTeam 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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