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Issue 647916 link

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Issue metadata

Status: Duplicate
Merged: issue 648062
Owner:
Last visit > 30 days ago
Closed: Sep 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Heap-buffer-overflow in FindCodecById<cricket::VideoCodec>

Project Member Reported by ClusterFuzz, Sep 17 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6384286808932352

Fuzzer: libfuzzer_sdp_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x608000002818
Crash State:
  FindCodecById<cricket::VideoCodec>
  GetCodecWithPayloadType<cricket::VideoCodec>
  void webrtc::UpdateCodec<cricket::VideoContentDescription, cricket::VideoCodec>
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=419157:419245

Minimized Testcase (2.18 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94JXbVIQRPr5TaQgG-0pnyGy2yXbLHmF2v-02_M7Z4ShvtX0DZ1lIb7zLV9nVgxywZNZvBOcgFc8mogYjPqLPbb4wiOEoWUck1YZxuB-1tH8-cJCetV1umEzg9NV0y9eUTKtDlk8BGgmnb2mLihfKlTCPGdHA?testcase_id=6384286808932352

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Project Member

Comment 1 by sheriffbot@chromium.org, Sep 17 2016

Labels: M-55
Project Member

Comment 2 by sheriffbot@chromium.org, Sep 17 2016

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, Sep 17 2016

Labels: Pri-1

Comment 4 by mmoroz@chromium.org, Sep 18 2016

Cc: mmoroz@chromium.org kcc@chromium.org pbos@chromium.org aizatsky@chromium.org
Components: Blink>WebRTC
Owner: phoglund@chromium.org
Heap-buffer-overflow, awesome!

Comment 5 by pbos@chromium.org, Sep 18 2016

Cc: phoglund@chromium.org
Owner: deadbeef@chromium.org
Status: Assigned (was: Untriaged)
Mergedinto: 648062
Status: Duplicate (was: Assigned)
Same root cause as another issue: parsing "sctp-port" in a non-data description.
Project Member

Comment 7 by ClusterFuzz, Oct 5 2016

ClusterFuzz has detected this issue as fixed in range 422769:422805.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6384286808932352

Fuzzer: libfuzzer_sdp_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x608000002818
Crash State:
  FindCodecById<cricket::VideoCodec>
  GetCodecWithPayloadType<cricket::VideoCodec>
  void webrtc::UpdateCodec<cricket::VideoContentDescription, cricket::VideoCodec>
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=419157:419245
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=422769:422805

Minimized Testcase (2.18 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94JXbVIQRPr5TaQgG-0pnyGy2yXbLHmF2v-02_M7Z4ShvtX0DZ1lIb7zLV9nVgxywZNZvBOcgFc8mogYjPqLPbb4wiOEoWUck1YZxuB-1tH8-cJCetV1umEzg9NV0y9eUTKtDlk8BGgmnb2mLihfKlTCPGdHA?testcase_id=6384286808932352

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md 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 sheriffbot@chromium.org, Jan 12 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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