An unbounded recursion flaw was found in the way Ruby handled regular expressions. A specially crafted regular expression could be used by an attacker to crash an Ruby application processing such crafted input.
Find out more about CVE-2017-6181 from the MITRE CVE dictionary dictionary and NIST NVD.
Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 6.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Package | State |
|---|---|---|
| Red Hat Subscription Asset Manager 1 | ruby193-ruby | Not affected |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-ruby23-ruby | Not affected |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-ruby22-ruby | Not affected |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-ruby24-ruby | Will not fix |
| Red Hat Enterprise Linux 7 | ruby | Not affected |
| Red Hat Enterprise Linux 6 | ruby | Not affected |
| Red Hat Enterprise Linux 5 | ruby | Not affected |
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