New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 874572 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Aug 17
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



Sign in to add a comment

Global-buffer-overflow in MemoryRead<unsigned

Project Member Reported by ClusterFuzz, Aug 15

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5210987263950848

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_v8_arm64_dbg
Platform Id: linux

Crash Type: Global-buffer-overflow READ 8
Crash Address: 0x7f33b853ae27
Crash State:
  MemoryRead<unsigned
  v8::internal::Simulator::LoadStoreHelper
  v8::internal::Simulator::ExecuteInstruction
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_v8_arm64_dbg&range=55137:55138

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5210987263950848

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 15

Labels: Test-Predator-Auto-Owner
Owner: cbruni@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/0027c83440059e6717032ff2cd1ba677eb9890e7 ([callbacks] Properly support RCS for ApiAccessors and Callbacks.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Labels: Security_Impact-Head M-70
Regression CL landed today, assigning Security_Impact-Head
Project Member

Comment 3 by sheriffbot@chromium.org, Aug 16

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 4 by sheriffbot@chromium.org, Aug 16

Labels: Pri-1
Project Member

Comment 5 by ClusterFuzz, Aug 17

ClusterFuzz has detected this issue as fixed in range 55165:55166.

Detailed report: https://clusterfuzz.com/testcase?key=5210987263950848

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_v8_arm64_dbg
Platform Id: linux

Crash Type: Global-buffer-overflow READ 8
Crash Address: 0x7f33b853ae27
Crash State:
  MemoryRead<unsigned
  v8::internal::Simulator::LoadStoreHelper
  v8::internal::Simulator::ExecuteInstruction
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_v8_arm64_dbg&range=55137:55138
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_d8_v8_arm64_dbg&range=55165:55166

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5210987263950848

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, Aug 17

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5210987263950848 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, Aug 17

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Labels: -reward-topanel reward-0
(found by multiple, including internal, fuzzers)
Labels: -ReleaseBlock-Stable
Project Member

Comment 10 by sheriffbot@chromium.org, Nov 23

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