CVE-2017-9224

Public Exploit

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 read occurs in match_at() during regular expression searching. A logical error involving order of validation and access in match_at() could result in an out-of-bounds read from a stack buffer.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.57%
Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/kkos/oniguruma/commit/690313a061f7a4fa614ec5cc8368b4f2284e059b third party advisory patch
https://access.redhat.com/errata/RHSA-2018:1296 third party advisory vendor advisory
https://github.com/kkos/oniguruma/issues/57 issue tracking exploit third party advisory
http://www.securityfocus.com/bid/101244 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-9224?
CVE-2017-9224 has been scored as a critical severity vulnerability.
How to fix CVE-2017-9224?
To fix CVE-2017-9224, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-9224 being actively exploited in the wild?
It is possible that CVE-2017-9224 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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