imagemagick/encoder_pict_fuzzer: Use-of-uninitialized-value in ScaleQuantumToChar

2018-03-17T13:35:49
ID OSSFUZZ-6994
Type ossfuzz
Reporter Google
Modified 2018-04-17T15:22:28

Description

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

Detailed report: https://oss-fuzz.com/testcase?key=6572860567977984

Project: imagemagick Fuzzer: libFuzzer_imagemagick_encoder_pict_fuzzer Fuzz target binary: encoder_pict_fuzzer Job Type: libfuzzer_msan_imagemagick Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: ScaleQuantumToChar WritePICTImage WriteImage

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_imagemagick&range=201803160431:201803170433

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6572860567977984

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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