CVE-2018-10930
Find out more about CVE-2018-10930 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.
This flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
CVSS v3 metrics
| CVSS3 Base Score | 6.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | High |
| Availability Impact | None |
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Storage Native Client for Red Hat Enterprise Linux 7 (glusterfs) | RHSA-2018:2607 | 2018-09-04 |
| Red Hat Gluster Storage 3.4 for RHEL 6 (glusterfs) | RHSA-2018:2608 | 2018-09-04 |
| Red Hat Storage Native Client for Red Hat Enterprise Linux 6 (glusterfs) | RHSA-2018:2608 | 2018-09-04 |
| Red Hat Gluster Storage 3.4 for RHEL 7 (glusterfs) | RHSA-2018:2607 | 2018-09-04 |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts | RHSA-2018:3470 | 2018-11-05 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 6 | glusterfs | Not affected |
Acknowledgements
Red Hat would like to thank Michael Hanselmann (hansmi.ch) for reporting this issue.Mitigation
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.