The net/http package's Request.ParseMultipartForm method starts writing to temporary files once the request body size surpasses the given "maxMemory" limit. It was possible for an attacker to generate a multipart request crafted such that the server ran out of file descriptors.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-1000098 from the MITRE CVE dictionary dictionary and NIST NVD.
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
| CVSS3 Base Score | 5.9 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (golang) | RHSA-2017:1859 | 2017-08-01 |
| Platform | Package | State |
|---|---|---|
| Red Hat OpenStack Platform Operational Tools 9 | golang | Will not fix |
| Red Hat OpenStack Platform 10.0 Operational Tools for RHEL 7 | golang | Not affected |
| Red Hat OpenShift Enterprise 3 | golang | Not affected |
| Red Hat Enterprise Linux OpenStack Platform 8.0 Operational Tools for RHEL 7 | golang | Will not fix |
Vulmon