Issue 45630 in oss-fuzz: elfutils:fuzz-libelf: Use-of-uninitialized-value in validate_str

[ClusterFuzz-External via monorail]

Status: New
Owner: ----
CC: elfut...@sourceware.org, da...@adalogics.com, evv...@gmail.com, izzeem@google.com 
Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer Engine-libfuzzer OS-Linux Security_Severity-Medium Proj-elfutils Reported-2022-03-17
Type: Bug-Security

New issue 45630 by ClusterFuzz-External: elfutils:fuzz-libelf: Use-of-uninitialized-value in validate_str
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45630

Detailed Report: https://oss-fuzz.com/testcase?key=5658767587409920

Project: elfutils
Fuzzing Engine: libFuzzer
Fuzz Target: fuzz-libelf
Job Type: libfuzzer_msan_elfutils
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  validate_str
  elf_strptr
  fuzz_logic_one
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_elfutils&range=202203161800:202203170000

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5658767587409920

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally.
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