harfbuzz/hb-subset-fuzzer: Global-buffer-overflow in CFF::BlendArg::set_blends

2018-12-03T14:21:33
ID OSSFUZZ-11714
Type ossfuzz
Reporter Google
Modified 2019-01-06T16:24:01

Description

Project: https://github.com/harfbuzz/harfbuzz.git

Detailed report: https://oss-fuzz.com/testcase?key=5710107829075968

Project: harfbuzz Fuzzer: afl_harfbuzz_hb-subset-fuzzer Fuzz target binary: hb-subset-fuzzer Job Type: afl_asan_harfbuzz Platform Id: linux

Crash Type: Global-buffer-overflow READ 8 Crash Address: 0x000002beed80 Crash State: CFF::BlendArg::set_blends CFF::CFF2CSOpSet<CFF2CSOpSet_SubrSubset, CFF::SubrSubsetParam, CFF::PathProcsNul CFF2CSOpSet_SubrSubset::process_op

Sanitizer: address (ASAN)

Regressed: https://oss-fuzz.com/revisions?job=afl_asan_harfbuzz&range=201812010220:201812020220

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5710107829075968

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for more information.

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