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Issue metadata

Status: Verified
Owner:
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Integer-overflow in icu_58::RegexCompile::minMatchLength

Project Member Reported by ClusterFuzz, Nov 15 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6132831953879040

Fuzzer: libfuzzer_icu_uregex_open_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  icu_58::RegexCompile::minMatchLength
  icu_58::RegexCompile::compile
  icu_58::RegexPattern::compile
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=395640:395746

Minimized Testcase (0.02 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94MO-Yzc0ycP0xFZZ0V49VQ-Q9udbtUvBIJn3uTUFP2A4xRD4wNEWt59jkd3_BuNRCx27odOacXmbY2h7uanIYHTQohLp9WHDy03kFgZdsuAdVZe7bv92RwwLkoV1_4x6Rpg-gkmEYHmACpX5qJoLdDJFDPDQ?testcase_id=6132831953879040

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Owner: aizatsky@chromium.org
Status: Assigned (was: Untriaged)
aizatsky@ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

Project Member

Comment 2 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 3 by mmoroz@chromium.org, Apr 21 2017

Cc: och...@chromium.org infe...@chromium.org kcc@chromium.org mmoroz@chromium.org
Owner: js...@chromium.org
jshin@, as an owner of ICU, could you please take a look? It seems to be a valid long-living integer overflow bug.
Project Member

Comment 4 by ClusterFuzz, May 15 2017

ClusterFuzz has detected this issue as fixed in range 471619:471628.

Detailed report: https://clusterfuzz.com/testcase?key=6132831953879040

Fuzzer: libfuzzer_icu_uregex_open_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  icu_58::RegexCompile::minMatchLength
  icu_58::RegexCompile::compile
  icu_58::RegexPattern::compile
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=395640:395746
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=471619:471628

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6132831953879040


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 5 by ClusterFuzz, May 15 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6132831953879040 is verified as fixed, so closing issue.

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

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