CVE-2017-9225
Last modified
CVE-2017-9225 is a vulnerability of currently unknown severity. 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. EPSS estimates a 3.08% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oniguruma Project | Oniguruma | 6.2.0 |
| Php | Php | <= 7.1.5 |
| Ruby-Lang | Ruby | <= 2.4.1 |
References
- https://github.com/kkos/oniguruma/commit/166a6c3999bf06b4de0ab4ce6b088a468cc4029fPatch, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/56Exploit, Third Party Advisory
- https://github.com/kkos/oniguruma/commit/166a6c3999bf06b4de0ab4ce6b088a468cc4029fPatch, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/56Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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