CVE-2018-14660

glusterfs: Repeat use of "GF_META_LOCK_KEY" xattr allows for memory exhaustion

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw was found in glusterfs server through versions 4.1.4 and 3.1.2 which allowed repeated usage of GF_META_LOCK_KEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node.

Se ha encontrado un error en el servidor glusterfs hasta las versiones 4.1.4 y 3.1.2 que permitía el uso repetido del xattr GF_META_LOCK_KEY. Un atacante autenticado remoto podría emplear este error para crear múltiples bloqueos para un único inode mediante el uso repetido de setxattr, lo que resulta en el agotamiento de la memoria del nodo del servidor glusterfs.

A flaw was found in glusterfs server which allowed repeated usage of GF_META_LOCK_KEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-07-27 CVE Reserved
2018-10-31 CVE Published
2024-08-05 CVE Updated
2024-08-16 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (8)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:3431	2023-02-13
https://access.redhat.com/errata/RHSA-2018:3432	2023-02-13
https://access.redhat.com/errata/RHSA-2018:3470	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14660	2023-02-13
https://security.gentoo.org/glsa/201904-06	2023-02-13
https://access.redhat.com/security/cve/CVE-2018-14660	2018-11-05
https://bugzilla.redhat.com/show_bug.cgi?id=1635926	2018-11-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"	Virtualization Search vendor "Redhat" for product "Virtualization"	4.0 Search vendor "Redhat" for product "Virtualization" and version "4.0"	-	Affected	in	Redhat Search vendor "Redhat"	Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"	7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"	-	Safe
Redhat Search vendor "Redhat"	Virtualization Host Search vendor "Redhat" for product "Virtualization Host"	4.0 Search vendor "Redhat" for product "Virtualization Host" and version "4.0"	-	Affected	in	Redhat Search vendor "Redhat"	Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"	7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"	-	Safe
Gluster Search vendor "Gluster"		Glusterfs Search vendor "Gluster" for product "Glusterfs"				>= 3.1.0 <= 3.1.2 Search vendor "Gluster" for product "Glusterfs" and version " >= 3.1.0 <= 3.1.2"		-		Affected
Gluster Search vendor "Gluster"		Glusterfs Search vendor "Gluster" for product "Glusterfs"				>= 4.1.0 <= 4.1.4 Search vendor "Gluster" for product "Glusterfs" and version " >= 4.1.0 <= 4.1.4"		-		Affected
Redhat Search vendor "Redhat"		Virtualization Host Search vendor "Redhat" for product "Virtualization Host"				4.0 Search vendor "Redhat" for product "Virtualization Host" and version "4.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				6.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected