CVE-2017-9228
Last modified
CVE-2017-9228 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 heap out-of-bounds write occurs in bitset_set_range() during regular expression compilation due to an uninitialized variable from an incorrect state transition. EPSS estimates a 6.26% 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 heap out-of-bounds write occurs in bitset_set_range() during regular expression compilation due to an uninitialized variable from an incorrect state transition. An incorrect state transition in parse_char_class() could create an execution path that leaves a critical local variable uninitialized until it's used as an index, resulting in an out-of-bounds write memory corruption.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oniguruma Project | Oniguruma | 6.2.0 |
| Php | Php | >= 5.6.0, < 5.6.31 |
| Php | Php | >= 7.0.0, < 7.0.21 |
| Php | Php | >= 7.1.0, < 7.1.7 |
References
- https://access.redhat.com/errata/RHSA-2018:1296Third Party Advisory
- https://github.com/kkos/oniguruma/commit/3b63d12038c8d8fc278e81c942fa9bec7c704c8bPatch, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/60Exploit, Issue Tracking, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1296Third Party Advisory
- https://github.com/kkos/oniguruma/commit/3b63d12038c8d8fc278e81c942fa9bec7c704c8bPatch, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/60Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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