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 nextstateval() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetchtoken() and fetchtokenincc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in nextstateval(), resulting in an out-of-bounds write memory corruption.
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"signature_type": "Function",
"id": "CVE-2017-9226-02f03537",
"source": "https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6",
"signature_version": "v1",
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"target": {
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"length": 4764.0
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},
{
"signature_type": "Line",
"id": "CVE-2017-9226-03e1ab44",
"source": "https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6",
"signature_version": "v1",
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{
"signature_type": "Function",
"id": "CVE-2017-9226-25483da6",
"source": "https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6",
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{
"signature_type": "Line",
"id": "CVE-2017-9226-4c23b0ba",
"source": "https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a",
"signature_version": "v1",
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"signature_type": "Function",
"id": "CVE-2017-9226-af653b09",
"source": "https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a",
"signature_version": "v1",
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