CVE-2018-10930: Input Validation
First published: Mon Aug 06 2018(Updated: )
A flaw was found in RPC request using gfs3_rename_req in glusterfs server. An authenticated attacker could use this flaw to write to a destination outside the gluster volume.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/glusterfs | <3.12.14 | 3.12.14 |
| redhat/glusterfs | <4.1.4 | 4.1.4 |
| redhat/glusterfs | <0:3.12.2-18.el6 | 0:3.12.2-18.el6 |
| redhat/glusterfs | <0:3.12.2-18.el7 | 0:3.12.2-18.el7 |
| redhat/redhat-release-server | <0:6Server-6.10.0.24.el6 | 0:6Server-6.10.0.24.el6 |
| redhat/redhat-storage-server | <0:3.4.0.0-1.el6 | 0:3.4.0.0-1.el6 |
| redhat/redhat-release-server | <0:7.5-11.el7 | 0:7.5-11.el7 |
| redhat/redhat-storage-server | <0:3.4.0.0-1.el7 | 0:3.4.0.0-1.el7 |
| redhat/imgbased | <0:1.0.29-1.el7e | 0:1.0.29-1.el7e |
| redhat/redhat-release-virtualization-host | <0:4.2-7.3.el7 | 0:4.2-7.3.el7 |
| redhat/redhat-virtualization-host | <0:4.2-20181026.0.el7_6 | 0:4.2-20181026.0.el7_6 |
| Gluster GlusterFS | >=3.12<3.12.14 | |
| Gluster GlusterFS | >=4.1<4.1.4 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux Server | =7.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Redhat Virtualization | =4.0 | |
| Redhat Virtualization Host | =4.0 | |
| Redhat Enterprise Linux | =7.0 | |
| openSUSE Leap | =15.1 |
Remedy
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.
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00035.html
- https://access.redhat.com/errata/RHSA-2018:2607
- https://access.redhat.com/errata/RHSA-2018:2608
- https://access.redhat.com/errata/RHSA-2018:3470
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10930
- https://lists.debian.org/debian-lts-announce/2018/09/msg00021.html
- https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html
- https://review.gluster.org/#/c/glusterfs/+/21068/
- https://security.gentoo.org/glsa/201904-06
- https://access.redhat.com/security/updates/classification/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1625085
- https://review.gluster.org/21068
- https://bugzilla.redhat.com/show_bug.cgi?id=1612664
- https://www.cve.org/CVERecord?id=CVE-2018-10930 https://nvd.nist.gov/vuln/detail/CVE-2018-10930
- https://access.redhat.com/security/cve/CVE-2018-10930
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the vulnerability ID for this flaw?
The vulnerability ID for this flaw is CVE-2018-10930.
What is the severity of CVE-2018-10930?
The severity of CVE-2018-10930 is high.
What is the affected software for CVE-2018-10930?
The affected software for CVE-2018-10930 is GlusterFS.
How can an attacker exploit CVE-2018-10930?
An attacker can exploit CVE-2018-10930 by using a flaw in RPC request in the GlusterFS server to write to a destination outside the Gluster volume.
Where can I find more information about CVE-2018-10930?
You can find more information about CVE-2018-10930 at the following references: [link1](https://access.redhat.com/security/updates/classification/), [link2](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1625085), [link3](https://access.redhat.com/errata/RHSA-2018:2607).
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