Bug 1636880 (CVE-2018-14661) - CVE-2018-14661 glusterfs: features/locks translator passes an user-controlled string to snprintf without a proper format string resulting in a denial of service
Summary: CVE-2018-14661 glusterfs: features/locks translator passes an user-controlled...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-14661
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1616829 1637084 1644578 1644763 1647666 1647668
Blocks: 1636883 1644080
TreeView+ depends on / blocked
 
Reported: 2018-10-08 07:55 UTC by Andrej Nemec
Modified: 2021-02-16 22:58 UTC (History)
29 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
It was found that usage of snprintf function in feature/locks translator of glusterfs server was vulnerable to a format string attack. A remote, authenticated attacker could use this flaw to cause remote denial of service.
Clone Of:
Environment:
Last Closed: 2019-06-10 10:39:27 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3431 0 None None None 2018-10-31 08:43:57 UTC
Red Hat Product Errata RHSA-2018:3432 0 None None None 2018-10-31 08:45:08 UTC
Red Hat Product Errata RHSA-2018:3470 0 None None None 2018-11-05 14:59:11 UTC

Description Andrej Nemec 2018-10-08 07:55:05 UTC 
A vulnerability was found in Gluster's features/locks translator An user-controlled string is given to snprintf without a proper format string. Sending a specially crafted string would result in a denial of service.
Comment 1 Andrej Nemec 2018-10-08 07:55:17 UTC 
Acknowledgments:

Name: Michael Hanselmann (hansmi.ch)
Comment 4 Doran Moppert 2018-10-11 00:10:51 UTC 
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.
Comment 5 Siddharth Sharma 2018-10-31 08:11:57 UTC 
Created glusterfs tracking bugs for this issue:

Affects: fedora-all [bug 1644578]
Comment 6 errata-xmlrpc 2018-10-31 08:43:42 UTC 
This issue has been addressed in the following products:

  Red Hat Gluster Storage 3.4 for RHEL 6
  Native Client for RHEL 6 for Red Hat Storage

Via RHSA-2018:3431 https://access.redhat.com/errata/RHSA-2018:3431
Comment 7 errata-xmlrpc 2018-10-31 08:44:50 UTC 
This issue has been addressed in the following products:

  Red Hat Gluster Storage 3.4 for RHEL 7
  Native Client for RHEL 7 for Red Hat Storage

Via RHSA-2018:3432 https://access.redhat.com/errata/RHSA-2018:3432
Comment 8 Siddharth Sharma 2018-11-01 05:22:06 UTC 
upstream fix:

https://review.gluster.org/#/c/glusterfs/+/21532/
Comment 9 errata-xmlrpc 2018-11-05 14:58:59 UTC 
This issue has been addressed in the following products:

  Red Hat Virtualization 4 for Red Hat Enterprise Linux 7

Via RHSA-2018:3470 https://access.redhat.com/errata/RHSA-2018:3470
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