GlusterFS FUSE Request null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in GlusterFS. This vulnerability affects unknown code of the component FUSE. This manipulation as part of Request causes null pointer dereference. This vulnerability is tracked as CVE-2018-10914. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GlusterFS (version now known). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component FUSE. The manipulation as part of a Request leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

It was found that an attacker could issue a xattr request via glusterfs FUSE to cause gluster brick process to crash which will result in a remote denial of service. If gluster multiplexing is enabled this will result in a crash of multiple bricks and gluster volumes.

The bug was discovered 02/03/2018. The weakness was disclosed 09/04/2018 by Michael Hanselmann as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2018-10914 since 05/09/2018. The exploitation appears to be easy. The attack can be launched remotely. Required for exploitation is a single authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 213 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 117317 (RHEL 7 : Gluster Storage (RHSA-2018:2607)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 256518 (CentOS Security Update for glusterfs (CESA-2018:2607)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (117317) and SecurityFocus (BID 107577†). The entries VDB-123573, VDB-123574, VDB-123575 and VDB-123576 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117317
Nessus Name: RHEL 7 : Gluster Storage (RHSA-2018:2607)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

02/03/2018 🔍
05/09/2018 +94 days 🔍
09/04/2018 +118 days 🔍
09/04/2018 +0 days 🔍
09/05/2018 +1 days 🔍
09/06/2018 +1 days 🔍
01/07/2019 +123 days 🔍
03/21/2019 +73 days 🔍
05/07/2023 +1508 days 🔍

Sourcesinfo

Advisory: RHSA-2018:2607
Researcher: Michael Hanselmann
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-10914 (🔍)
GCVE (CVE): GCVE-0-2018-10914
GCVE (VulDB): GCVE-100-123577
SecurityFocus: 107577 - GlusterFS CVE-2018-10929 Arbitrary Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 09/05/2018 06:48
Updated: 05/07/2023 08:05
Changes: 09/05/2018 06:48 (73), 03/20/2020 15:39 (7), 05/07/2023 07:59 (4), 05/07/2023 08:05 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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