libvips:pngsave_buffer_fuzzer: Heap-buffer-overflow in IsHTML

2019-08-09T06:59:24
ID OSSFUZZ-16313
Type ossfuzz
Reporter Google
Modified 2019-09-09T15:30:27

Description

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

Detailed report: https://oss-fuzz.com/testcase?key=5157921138147328

Project: libvips Fuzzing engine: libFuzzer Fuzz target: pngsave_buffer_fuzzer Job Type: libfuzzer_asan_libvips Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x609000003a75 Crash State: IsHTML GetImageMagick magick_ismagick

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_libvips&range=201908070201:201908090201

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5157921138147328

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for instructions to reproduce this bug locally.

This bug is subject to a 90 day disclosure deadline. If 90 days elapse without an upstream patch, then the bug report will automatically become visible to the public.