An issue exists in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby up to and including 2.4.1 and mbstring in PHP up to and including 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
oniguruma project oniguruma 6.2.0 |
||
php php |
||
ruby-lang ruby |
Vulmon