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Fencer Vulns
high 7.8

CVE-2022-41973 json

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.

published 2022-10-29 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-45077

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

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.

Patch / fix

  • opensvc multipath-tools 0.9.2
  • multipath-tools Debian 14, Debian 13, Debian 12 0.9.4-1

debian advisories DEBIAN-CVE-2022-41973

  • multipath-tools Ubuntu 20.04 LTS 0.8.3-1ubuntu2.1
  • multipath-tools Ubuntu 22.04 LTS 0.8.8-1ubuntu1.22.04.1

ubuntu advisories UBUNTU-CVE-2022-41973

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • device-mapper-multipath RHEL 8 0.8.4-37.el8
  • kpartx RHEL 8 0.8.4-37.el8
  • libdmmp RHEL 8 0.8.4-37.el8
  • device-mapper-multipath-libs RHEL 8 0.8.4-37.el8
  • device-mapper-multipath RHEL 9 0.8.7-20.el9
  • kpartx RHEL 9 0.8.7-20.el9
  • device-mapper-multipath-libs RHEL 9 0.8.7-20.el9
  • device-mapper-multipath RHEL 8.6 EUS 0.8.4-22.el8_6.5

red hat advisories RHSA-2024:1110RHSA-2023:2948RHSA-2023:2459

  • multipath-tools SLE Module for Basesystem 15 SP4, SLE Micro 5.3, openSUSE Leap 15.4 0.9.0+62+suse.3e048d4-150400.4.7.1
  • multipath-tools SLE Module for Basesystem 15 SP3, SLE Micro 5.2, SLE Micro 5.1 +2 more 0.8.5+126+suse.8ce8da5-150300.2.14.1
  • multipath-tools SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +6 more 0.8.2+182.6d41865-150200.4.14.1
  • multipath-tools SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLES 15 SP1-BCL +3 more 0.7.9+232+suse.cbc3754-150100.3.20.1
  • multipath-tools SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 0.7.9+232+suse.cbc3754-3.14.1

suse advisories SUSE-SU-2022:3711-1SUSE-SU-2022:3710-1SUSE-SU-2022:3709-1SUSE-SU-2022:3708-1SUSE-SU-2022:3707-1

  • device-mapper-multipath AlmaLinux 8 0.8.4-37.el8
  • kpartx AlmaLinux 8 0.8.4-37.el8
  • libdmmp AlmaLinux 8 0.8.4-37.el8
  • device-mapper-multipath-libs AlmaLinux 8 0.8.4-37.el8
  • device-mapper-multipath AlmaLinux 9 0.8.7-20.el9
  • kpartx AlmaLinux 9 0.8.7-20.el9
  • device-mapper-multipath-libs AlmaLinux 9 0.8.7-20.el9

almalinux advisories ALSA-2023:2948ALSA-2023:2459

  • device-mapper-multipath CBL-Mariner 2.0 0.8.6-4

azure linux advisories AZL-11371

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-41973 updated cvss 7.0

device-mapper-multipath: multipathd: insecure handling of files in /dev/shm leading to symlink attack

  • Red Hat CodeReady Linux Builder EUS (v.8.6) kpartx-debuginfo 0.8.4-22.el8_6.5, libdmmp-debuginfo 0.8.4-22.el8_6.5, device-mapper-multipath-devel 0.8.4-22.el8_6.5, device-mapper-multipath-debuginfo 0.8.4-22.el8_6.5, device-mapper-multipath-debugsource 0.8.4-22.el8_6.5, device-mapper-multipath-libs-debuginfo 0.8.4-22.el8_6.5
    fixed: vendor fix RHSA-2024:1110
  • Red Hat Enterprise Linux BaseOS (v. 8) kpartx 0.8.4-37.el8, libdmmp 0.8.4-37.el8, device-mapper-multipath 0.8.4-37.el8, device-mapper-multipath-libs 0.8.4-37.el8
    fixed: vendor fix RHSA-2023:2948
  • Red Hat Enterprise Linux BaseOS (v. 9) kpartx 0.8.7-20.el9, device-mapper-multipath 0.8.7-20.el9, device-mapper-multipath-libs 0.8.7-20.el9
    fixed: vendor fix RHSA-2023:2459
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) kpartx 0.8.4-22.el8_6.5, libdmmp 0.8.4-22.el8_6.5, device-mapper-multipath 0.8.4-22.el8_6.5, device-mapper-multipath-libs 0.8.4-22.el8_6.5
    fixed: vendor fix RHSA-2024:1110
  • Red Hat Enterprise Linux CRB (v. 8) kpartx-debuginfo 0.8.4-37.el8, libdmmp-debuginfo 0.8.4-37.el8, device-mapper-multipath-devel 0.8.4-37.el8, device-mapper-multipath-debuginfo 0.8.4-37.el8, device-mapper-multipath-debugsource 0.8.4-37.el8, device-mapper-multipath-libs-debuginfo 0.8.4-37.el8
    fixed: vendor fix RHSA-2023:2948
  • Red Hat Enterprise Linux CRB (v. 9) kpartx-debuginfo 0.8.7-20.el9, libdmmp-debuginfo 0.8.7-20.el9, device-mapper-multipath-devel 0.8.7-20.el9, device-mapper-multipath-debuginfo 0.8.7-20.el9, device-mapper-multipath-debugsource 0.8.7-20.el9, device-mapper-multipath-libs-debuginfo 0.8.7-20.el9
    fixed: vendor fix RHSA-2023:2459
  • Red Hat Enterprise Linux 6 kpartx, device-mapper-multipath, device-mapper-multipath-libs Red Hat Enterprise Linux 7 kpartx, libdmmp, device-mapper-multipath, device-mapper-multipath-libs, device-mapper-multipath-sysvinit
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openwall.com http://www.openwall.com/lists/oss-security/2022/10/24/2 referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2022/Oct/25 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/169611/Leeloo-Multipath-Authorization-Bypass-Symlink-Attack.html referenced PoC, tagged "exploit" by a source, unverified
  • qualys.com https://www.qualys.com/2022/10/24/leeloo-multipath/leeloo-multipath.txt referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com http://www.openwall.com/lists/oss-security/2022/11/30/2 referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2022/Dec/4 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.