Format string error in Gluster GlusterFS



| Updated: 2020-08-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-14661
CWE-ID CWE-134
Exploitation vector Network
Public exploit N/A
Vulnerable software
GlusterFS
Server applications / File servers (FTP/HTTP)

Vendor Gluster Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Format string error

EUVDB-ID: #VU36459

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-14661

CWE-ID: CWE-134 - Use of Externally-Controlled Format String

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.

It was found that usage of snprintf function in feature/locks translator of glusterfs server 3.8.4, as shipped with Red Hat Gluster Storage, was vulnerable to a format string attack. A remote, authenticated attacker could use this flaw to cause remote denial of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GlusterFS: 3.8.4

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2018:3431
https://access.redhat.com/errata/RHSA-2018:3432
https://access.redhat.com/errata/RHSA-2018:3470
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14661
https://lists.debian.org/debian-lts-announce/2018/11/msg00003.html
https://security.gentoo.org/glsa/201904-06


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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