libvips:jpegsave_file_fuzzer: Heap-use-after-free in vips_foreign_load_gif_scan_image

2019-08-27T04:26:44
ID OSSFUZZ-16796
Type ossfuzz
Reporter Google
Modified 2019-12-31T04:42:20

Description

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

Detailed Report: https://oss-fuzz.com/testcase?key=5641864455127040

Project: libvips Fuzzing Engine: libFuzzer Fuzz Target: jpegsave_file_fuzzer Job Type: libfuzzer_asan_libvips Platform Id: linux

Crash Type: Heap-use-after-free READ 4 Crash Address: 0x603000016690 Crash State: vips_foreign_load_gif_scan_image vips_foreign_load_gif_header vips_foreign_load_gif_file_header

Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_libvips&range=201908260208:201908270210

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5641864455127040

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing 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.