haproxy:fuzz_cfg_parser: Heap-buffer-overflow in memvprintf

2020-06-25T23:09:18
ID OSSFUZZ-23715
Type ossfuzz
Reporter Google
Modified 2020-06-26T14:20:05

Description

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

Detailed Report: https://oss-fuzz.com/testcase?key=4899181834797056

Project: haproxy Fuzzing Engine: afl Fuzz Target: fuzz_cfg_parser Job Type: afl_asan_haproxy Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x619000000510 Crash State: memvprintf print_message ha_alert

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=afl_asan_haproxy&range=202006230248:202006250218

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4899181834797056

Issue filed automatically.

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