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Issue 711113 link

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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 464155:464212.

Detailed report: https://clusterfuzz.com/testcase?key=6391357775282176

Fuzzer: libfuzzer_pdf_cfx_saxreader_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

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

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=464097:464155
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=464155:464212

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv96pYrejFkMTRTY-O4Nv92B8y-0zMpUs1wFHmftGDjIO8trhendwK5n9mbKjCZZznZVV3qMW1T4CtbcMxu8opgtRsi3BgIeq5MpRy4gBVsNrxssxSiJRrp_PWjyae-7klpHuIukSm6NoFHuLU97dh7nMMZQpXKjLtFwQH8eoUVJkWlROpp7J2fOKVKOUiglTNtgfb9YYe-eYuWVw0iU459DeOc1NIln7vG5k9aTnUGxWIJyQHYiNTeZ1ds1hTN19bBPQDKOMjy1ytiI0ADHKDAiZMEARNiFkXkqIPuRFzA2QppHN14fIpBQHCtHFRqdDoZHNdV5u4f_q3ZPw4umK5GO-ihRlacjNTQ1qdD_9-NAb7WVw3OE?testcase_id=6391357775282176


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 6391357775282176 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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