CVE-2017-9229

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 SIGSEGV occurs in left_adjust_char_head() during regular expression compilation. Invalid handling of reg->dmax in forward_search_range() could result in an invalid pointer dereference, normally as an immediate denial-of-service condition.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.34%
Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402d third party advisory patch
https://access.redhat.com/errata/RHSA-2018:1296 third party advisory vendor advisory
https://github.com/kkos/oniguruma/issues/59 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2017-9229?
CVE-2017-9229 has been scored as a high severity vulnerability.
How to fix CVE-2017-9229?
To fix CVE-2017-9229, 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-2017-9229 being actively exploited in the wild?
It is possible that CVE-2017-9229 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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