CVE-2017-9225

CVE-2017-9225

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A stack out-of-bounds write in onigenc_unicode_get_case_fold_codes_by_str() occurs during regular expression compilation. Code point 0xFFFFFFFF is not properly handled in unicode_unfold_key(). A malformed regular expression could result in 4 bytes being written off the end of a stack buffer of expand_case_fold_string() during the call to onigenc_unicode_get_case_fold_codes_by_str(), a typical stack buffer overflow.

CVSS 9.8 · Critical · EPSS 3.1% · Fix available

Published

2017-05-24T15:00:00.000Z

Updated

2024-09-17T03:07:00.571Z

Stack: system

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