| Package | Affected versions | Patched versions |
|---|---|---|
| oniguruma | = 6.2.0 | |
| php | ≤ 7.1.5 | |
| ruby | ≤ 2.4.1 |
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.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free