CVE-2017-9226

Originalbeschreibung

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 or read occurs in next_state_val() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetch_token() and fetch_token_in_cc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in next_state_val(), resulting in an out-of-bounds write memory corruption.

Betroffene Software

• PHP ≥ 7.0.0 < 7.0.21< 5.6.31≥ 7.1.0 < 7.1.7 Behoben in: 7.0.21, 5.6.31, 7.1.7 exakte Übereinstimmung

Details

Veröffentlicht

2017-05-25

Zuletzt geändert

2024-08-06

CVSS-Vektor

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Referenzen

• cve.org/CVE-2017-9226
• nvd.nist.gov/vuln/detail/CVE-2017-9226
• github.com/kkos/oniguruma/issues/55
• access.redhat.com/errata/RHSA-2018:1296
• github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6
• github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a
• www.securityfocus.com/bid/101244