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Issue 648198 link

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Issue metadata

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

Blocked on:
issue 647905



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Heap-buffer-overflow in ~MediaContentDescriptionImpl

Project Member Reported by ClusterFuzz, Sep 19 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5593710702362624

Fuzzer: libfuzzer_sdp_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 8
Crash Address: 0x608000002090
Crash State:
  ~MediaContentDescriptionImpl
  cricket::VideoContentDescription::~VideoContentDescription
  ParseContentDescription<cricket::VideoContentDescription>
  
Recommended Security Severity: Medium

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

Minimized Testcase (0.17 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97df0-41daGx7ptl1O0S6QSnl_P4fY8cXMV8fZU2LOKv5CRjvAs1bbW1yxlTg2K8Oc-eWZLAda9vls0gS4-8y4q9kgZWvtmXcu7RIIY_QUmx2aS6M0xsciopom2kbj3YoQG0r_1UIHclMwjlzKu9SNCtboW3w?testcase_id=5593710702362624
v=0
o=moa...THIS_IS_SDPARTA-46.0.1 5115930144083302970 0 IN IPfingerprint4 0.0.0.0
s=-
t=0 0
m=videocation 9 DTLS/SCTP v
a=sctp-portrtcpfb:126 nack
a=rtcp-fb:126 nack pli


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 19 2016

Labels: M-55
Project Member

Comment 2 by sheriffbot@chromium.org, Sep 19 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 19 2016

Labels: Pri-1
Blockedon: 647905
Components: Blink>WebRTC
Owner: deadbeef@chromium.org
Status: Assigned (was: Untriaged)
Project Member

Comment 5 by sheriffbot@chromium.org, Sep 20 2016

Labels: M-55
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=5593710702362624

Fuzzer: libfuzzer_sdp_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 8
Crash Address: 0x608000002090
Crash State:
  ~MediaContentDescriptionImpl
  cricket::VideoContentDescription::~VideoContentDescription
  ParseContentDescription<cricket::VideoContentDescription>
  
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 (0.17 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97df0-41daGx7ptl1O0S6QSnl_P4fY8cXMV8fZU2LOKv5CRjvAs1bbW1yxlTg2K8Oc-eWZLAda9vls0gS4-8y4q9kgZWvtmXcu7RIIY_QUmx2aS6M0xsciopom2kbj3YoQG0r_1UIHclMwjlzKu9SNCtboW3w?testcase_id=5593710702362624
v=0
o=moa...THIS_IS_SDPARTA-46.0.1 5115930144083302970 0 IN IPfingerprint4 0.0.0.0
s=-
t=0 0
m=videocation 9 DTLS/SCTP v
a=sctp-portrtcpfb:126 nack
a=rtcp-fb:126 nack pli


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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