CVEvulnerability

CVE-2017-9225

9.8 CRITICAL Published 2017-05-24 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2017-05-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-787

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.

Affected configurations

• oniguruma project oniguruma 6.2.0 • php php (<= 7.1.5) • ruby-lang ruby (<= 2.4.1)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References