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Issue metadata

Status: Verified
Owner: ----
Closed: Jan 2017
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Use-of-uninitialized-value in CFDE_CSSSyntaxParser::DoSyntaxParse

Project Member Reported by ClusterFuzz, Jan 19 2017

Issue description

Project Member

Comment 1 by ClusterFuzz, Jan 19 2017

ClusterFuzz has detected this issue as fixed in range 444490:444601.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4949096390721536

Fuzzer: libfuzzer_pdf_css_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  CFDE_CSSSyntaxParser::DoSyntaxParse
  _start
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=444258:444490
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=444490:444601

Minimized Testcase (0.17 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94g81BUl98iPxpzaCwQfhFjVaz7H21GJED3voNjeWf79rNpOfW246cGXGqYs3AWqoZjneQ288UIP8Fsw8HXvJcQtLFQg_Pz9nSHT_HSedjC4GHEReWtB4WIhb0QmCNNFOfW87xCH382UvGvG8JYFSkFFhkbnu_aOdNdrXUUNmWWaZIeUdH59BAKk_nrDPUCQLykEKVKng3AnbQ9m3bo_hPCgm80suz_IIN0OVxscmdcwApj7xRxDQNdFSlpQ98Qc0CT82op3O8QXhOdsHevqEcYI14Rd7ApHcW-yj8laIwHE1sNZ3HCjaVA4QjjLSkLK-RH2bGbgpArb1ruz4vNDAK65POtpJh5-NL5kQ-tdn7-cWoGZY8?testcase_id=4949096390721536

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.
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Comment 2 by ClusterFuzz, Jan 19 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 4949096390721536 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Project Member

Comment 3 by sheriffbot@chromium.org, Jan 19 2017

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

Comment 4 by sheriffbot@chromium.org, Apr 27 2017

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
Project Member

Comment 5 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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