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Issue metadata

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



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Heap-buffer-overflow in CFX_SAXReader::ParseChar

Project Member Reported by ClusterFuzz, Apr 13 2017

Issue description

Project Member

Comment 1 by ClusterFuzz, Apr 13 2017

ClusterFuzz has detected this issue as fixed in range 464160:464216.

Detailed report: https://clusterfuzz.com/testcase?key=5838165048033280

Fuzzer: libfuzzer_pdf_cfx_saxreader_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow WRITE 1
Crash Address: 0x615000000780
Crash State:
  CFX_SAXReader::ParseChar
  CFX_SAXReader::ContinueParse
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=464117:464160
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=464160:464216

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv97-rzqK2vlhT65DbYf6r4OE9azuB94Vqs2vHXhvzJNdDGw2lLqQ0MpqwIMxSct0xqYAfIrcDwmr7pH7o3f_PxxpTtumqLzwbCJ2ERUeg7BoT0qJyguDrJfmdaZ4MjhrJrE3MRq07AOWoifIanG1flUPxvJq0xrB91K3R707rV4jo-luAvywuKOmTDJkNbJbOmm5ZSip6OHNCEB9P9gta3Sa3Bi91X2PqZo4-0OuBuyUMZ9nCq9zE2p5apSa3RGqWs-uK0wRhvVWosjT5hRxw5URhtBX26JYBfgEfgenCKQCxA8gzaRrtAfmmLm0BtikVx58ds5_8UBuZvCg-rUTE9ayUpqJWb4OkYrBls4m2nFleTi01YI?testcase_id=5838165048033280


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 2 by ClusterFuzz, Apr 13 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 5838165048033280 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, Apr 13 2017

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

Comment 4 by sheriffbot@chromium.org, Jul 20 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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