unrar/unrar_fuzzer: Heap-buffer-overflow in Unpack::GetChar

2018-04-19T03:17:15
ID OSSFUZZ-7870
Type ossfuzz
Reporter Google
Modified 2018-11-03T07:32:48

Description

Project: https://github.com/aawc/unrar.git

Detailed report: https://oss-fuzz.com/testcase?key=6587195432370176

Project: unrar Fuzzer: libFuzzer_unrar_fuzzer Fuzz target binary: unrar_fuzzer Job Type: libfuzzer_asan_unrar Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x62d00001c403 Crash State: Unpack::GetChar ModelPPM::DecodeChar Unpack::SafePPMDecodeChar

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6587195432370176

Issue filed automatically.

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

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