CVE-2017-9226

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/kkos/oniguruma/issues/55	Exploit Issue Tracking Third Party Advisory
https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6	Patch Third Party Advisory
https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a	Patch Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1296	Third Party Advisory
http://www.securityfocus.com/bid/101244	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

cpe:2.3:a:oniguruma_project:oniguruma:6.2.0:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php::::::::

Information

Published : 2017-05-24 08:29

Updated : 2022-07-20 09:38

NVD link : CVE-2017-9226

Mitre link : CVE-2017-9226

JSON object : View

CWE

CWE-787

Out-of-bounds Write

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Products Affected

oniguruma_project

oniguruma

php

php

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