libtiff/tiff_read_rgba_fuzzer: Use-of-uninitialized-value in putgreytile

2018-04-11T19:41:52
ID OSSFUZZ-7565
Type ossfuzz
Reporter Google
Modified 2019-08-11T14:38:06

Description

Project: https://gitlab.com/libtiff/libtiff.git

Detailed report: https://oss-fuzz.com/testcase?key=5203168024592384

Project: libtiff Fuzzer: libFuzzer_libtiff_tiff_read_rgba_fuzzer Fuzz target binary: tiff_read_rgba_fuzzer Job Type: libfuzzer_msan_libtiff Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: putgreytile gtTileContig TIFFRGBAImageGet

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5203168024592384

Issue filed automatically.

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

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.

When you fix this bug, please * mention the fix revision(s). * state whether the bug was a short-lived regression or an old bug in any stable releases. * add any other useful information. This information can help downstream consumers.

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