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Issue metadata

Status: Verified
Owner:
Closed: Jun 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug-Security



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Heap-buffer-overflow in avio_read

Project Member Reported by ClusterFuzz, Jun 19 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6251374933966848

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: Heap-buffer-overflow WRITE {*}
Crash Address: 0x60a000005a50
Crash State:
  avio_read
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=560370:560378

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6251374933966848

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jun 19 2018

Components: Internals>Media>FFmpeg
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 2 by ClusterFuzz, Jun 19 2018

Labels: Test-Predator-Auto-Owner
Owner: modma...@google.com
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/db2a7c947ec28b0a04a4e5193c9b0d33de823fbb (avcodec/avcodec.h: Add encryption info side data.).

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.
Project Member

Comment 3 by sheriffbot@chromium.org, Jun 20 2018

Labels: M-68 Target-68
Project Member

Comment 4 by sheriffbot@chromium.org, Jun 20 2018

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 5 by sheriffbot@chromium.org, Jun 20 2018

Labels: Pri-1
Project Member

Comment 6 by ClusterFuzz, Jun 21 2018

Labels: OS-Mac
Project Member

Comment 7 by ClusterFuzz, Jun 22 2018

ClusterFuzz has detected this issue as fixed in range 569503:569504.

Detailed report: https://clusterfuzz.com/testcase?key=6251374933966848

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: Heap-buffer-overflow WRITE {*}
Crash Address: 0x60a000005a50
Crash State:
  avio_read
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=560370:560378
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=569503:569504

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6251374933966848

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 8 by ClusterFuzz, Jun 22 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6251374933966848 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 9 by sheriffbot@chromium.org, Jun 22 2018

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

Comment 10 by sheriffbot@chromium.org, Jun 24 2018

Labels: Merge-Request-68
Project Member

Comment 11 by sheriffbot@chromium.org, Jun 24 2018

Labels: -Merge-Request-68 Hotlist-Merge-Review Merge-Review-68
This bug requires manual review: M68 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), kariahda@(iOS), bhthompson@(ChromeOS), abdulsyed@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Labels: -Merge-Review-68 Merge-Rejected-68
Not sure if there is anything to merge here. 
Probably this was another instance of  issue 853416  and  issue 849062 
Labels: -ReleaseBlock-Stable ReleaseBlock-NA
Project Member

Comment 15 by sheriffbot@chromium.org, Sep 28

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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