multipath-tools up to 0.9.1 multipathd /dev/shm symlink

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in multipath-tools up to 0.9.1. The affected element is an unknown function of the file /dev/shm of the component multipathd. This manipulation causes symlink. This vulnerability is registered as CVE-2022-41973. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in multipath-tools up to 0.9.1. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the file /dev/shm of the component multipathd. The manipulation with an unknown input leads to a symlink vulnerability. The CWE definition for the vulnerability is CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

multipath-tools 0.7.7 through 0.9.x before 0.9.2 allows local users to obtain root access, as exploited in conjunction with CVE-2022-41974. Local users able to access /dev/shm can change symlinks in multipathd due to incorrect symlink handling, which could lead to controlled file writes outside of the /dev/shm directory. This could be used indirectly for local privilege escalation to root.

The weakness was published 10/31/2022. It is possible to read the advisory at seclists.org. This vulnerability is known as CVE-2022-41973 since 09/30/2022. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236712 (Alibaba Cloud Linux 3 : 0066: device-mapper-multipath (ALINUX3-SA-2023:0066)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.9.2 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the databases at Tenable (236712) and CERT Bund (WID-SEC-2023-1185). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Gentoo Linux
  • SUSE openSUSE
  • Red Hat OpenShift
  • RESF Rocky Linux

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236712
Nessus Name: Alibaba Cloud Linux 3 : 0066: device-mapper-multipath (ALINUX3-SA-2023:0066)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: multipath-tools 0.9.2

Timelineinfo

09/30/2022 🔍
10/31/2022 +31 days 🔍
10/31/2022 +0 days 🔍
11/29/2025 +1125 days 🔍

Sourcesinfo

Advisory: 169611
Status: Confirmed

CVE: CVE-2022-41973 (🔍)
GCVE (CVE): GCVE-0-2022-41973
GCVE (VulDB): GCVE-100-212515
CERT Bund: WID-SEC-2023-1185 - Red Hat Enterprise Linux: Mehrere Schwachstellen

Entryinfo

Created: 10/31/2022 18:02
Updated: 11/29/2025 22:13
Changes: 10/31/2022 18:02 (41), 11/26/2022 15:46 (2), 11/26/2022 15:52 (12), 05/16/2025 19:58 (16), 11/29/2025 22:13 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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