CVE-2017-9228
CRITICAL9.8EPSS 0.58%Published: 5/24/2017Modified: 11/19/2025
Also known as:ALPINE-CVE-2017-9228DEBIAN-CVE-2017-9228
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.
Affected packages (2)
- Alpine/php5from 0, < 5.6.31-r0
- Debian/libonigfrom 0, < 6.1.3-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |