It was found that WEBrick could be forced to use an excessive amount of memory during the processing of HTTP requests, leading to a Denial of Service. An attacker could use this flaw to send huge requests to a WEBrick application, resulting in the server running out of memory.
Find out more about CVE-2018-8777 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the versions of ruby as shipped with Red Hat CloudForms 4. Red Hat Product Security has rated this issue as having security impact of Moderate. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
This issue affects the versions of ruby as shipped with Red Hat Subscription Asset Manager 1. Red Hat Product Security has rated this issue as having security impact of Moderate. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
| 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 | Errata | Release Date |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-ruby24-ruby) | RHSA-2018:3730 | 2018-11-29 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-ruby23-ruby) | RHSA-2018:3729 | 2018-11-29 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ruby23-ruby) | RHSA-2018:3729 | 2018-11-29 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ruby24-ruby) | RHSA-2018:3730 | 2018-11-29 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-ruby25-ruby) | RHSA-2018:3731 | 2018-11-29 |
| Platform | Package | State |
|---|---|---|
| Red Hat Subscription Asset Manager 1 | ruby193-ruby | Will not fix |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-ruby22-ruby | Will not fix |
| Red Hat Enterprise Linux 7 | ruby | Affected |
| Red Hat Enterprise Linux 6 | ruby | Will not fix |
| Red Hat Enterprise Linux 5 | ruby | Will not fix |
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