Vulnerability Report

CVE-2017-9227

Title: Php Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2017-9227.

CWE Category CWE-125

Published Date May 24, 2017

Modified Date May 13, 2026

Exploit Status Not Found

Score 9.8 CVSS v3.1

Exploit Probability (EPSS)

0.45%

Vulnerability Summary

CVE-2017-9227: 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 read occurs in mbc_enc_len() during regular expression searching. Invalid handling of reg->dmin in forward_search_range() could result in an invalid pointer dereference, as an out-of-bounds read from a stack buffer.

Impacted Vendors

php 1

php_group 1

oniguruma_project 1

Reference Links

http://www.securityfocus.com/bid/100538 https://access.redhat.com/errata/RHSA-2018:1296 https://github.com/kkos/oniguruma/commit/9690d3ab1f9bcd2db8cbe1fe3ee4a5da606b8814 https://github.com/kkos/oniguruma/issues/58 http://www.securityfocus.com/bid/100538 https://access.redhat.com/errata/RHSA-2018:1296 https://github.com/kkos/oniguruma/commit/9690d3ab1f9bcd2db8cbe1fe3ee4a5da606b8814 https://github.com/kkos/oniguruma/issues/58

CVSS v3.1

Source Entity [email protected]

Severity CRITICAL

9.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns