In the yajl-ruby gem 1.3.0 for Ruby, when a crafted JSON file is supplied to Yajl::Parser.new.parse, the whole ruby process crashes with a SIGABRT in the yajl_string_decode function in yajl_encode.c. This results in the whole ruby process terminating and potentially a denial of service.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-16516 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 7.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Package | State |
|---|---|---|
| Red Hat Virtualization 4 | rubygem-yajl-ruby | Will not fix |
| Red Hat OpenStack Platform Operational Tools 9 | rubygem-yajl-ruby | Will not fix |
| Red Hat OpenStack Platform 13.0 Operational Tools for RHEL 7 | rubygem-yajl-ruby | Will not fix |
| Red Hat OpenStack Platform 12.0 Operational Tools for RHEL 7 | rubygem-yajl-ruby | Will not fix |
| Red Hat OpenStack Platform 11.0 Operational Tools for RHEL 7 | rubygem-yajl-ruby | Will not fix |
| Red Hat OpenStack Platform 10.0 Operational Tools for RHEL 7 | rubygem-yajl-ruby | Will not fix |
| Red Hat OpenShift Enterprise 3 | rubygem-yajl-ruby | Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 8.0 Operational Tools for RHEL 7 | rubygem-yajl-ruby | Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 7.0 Operational Tools for RHEL 7 | rubygem-yajl-ruby | Will not fix |
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